Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Look-and-say sequence

Index Look-and-say sequence

In mathematics, the look-and-say sequence is the sequence of integers beginning as follows: To generate a member of the sequence from the previous member, read off the digits of the previous member, counting the number of digits in groups of the same digit. [1]

24 relations: Algebraic number, Autogram, Chemical element, Clifford Stoll, Decimal, Degeneracy (mathematics), Gijswijt's sequence, Integer sequence, John Horton Conway, Kolakoski sequence, Limit (mathematics), Mathematical constant, Mathematics, MathWorld, Periodic sequence, Pigeonhole principle, Polynomial, Radix, Robert Morris (cryptographer), Rosetta Code, Run-length encoding, The Cuckoo's Egg, Transuranium element, Zero of a function.

Algebraic number

An algebraic number is any complex number (including real numbers) that is a root of a non-zero polynomial (that is, a value which causes the polynomial to equal 0) in one variable with rational coefficients (or equivalently – by clearing denominators – with integer coefficients).

New!!: Look-and-say sequence and Algebraic number · See more »

Autogram

An autogram (Greek: αὐτός.

New!!: Look-and-say sequence and Autogram · See more »

Chemical element

A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).

New!!: Look-and-say sequence and Chemical element · See more »

Clifford Stoll

Clifford Paul "Cliff" Stoll (born June 4, 1950) is an American astronomer, author and teacher.

New!!: Look-and-say sequence and Clifford Stoll · See more »

Decimal

The decimal numeral system (also called base-ten positional numeral system, and occasionally called denary) is the standard system for denoting integer and non-integer numbers.

New!!: Look-and-say sequence and Decimal · See more »

Degeneracy (mathematics)

In mathematics, a degenerate case is a limiting case in which an element of a class of objects is qualitatively different from the rest of the class and hence belongs to another, usually simpler, class.

New!!: Look-and-say sequence and Degeneracy (mathematics) · See more »

Gijswijt's sequence

In mathematics, Gijswijt's sequence (named after D.C. Gijswijt by Neil Sloane) is a self-describing sequence where each term counts the maximal number of repeated blocks in the sequence up to that term.

New!!: Look-and-say sequence and Gijswijt's sequence · See more »

Integer sequence

In mathematics, an integer sequence is a sequence (i.e., an ordered list) of integers.

New!!: Look-and-say sequence and Integer sequence · See more »

John Horton Conway

John Horton Conway FRS (born 26 December 1937) is an English mathematician active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory.

New!!: Look-and-say sequence and John Horton Conway · See more »

Kolakoski sequence

In mathematics, the Kolakoski sequence, sometimes also known as the Oldenburger-Kolakoski sequence, is an infinite sequence of symbols that is its own run-length encoding and the prototype for an infinite family of related sequences.

New!!: Look-and-say sequence and Kolakoski sequence · See more »

Limit (mathematics)

In mathematics, a limit is the value that a function (or sequence) "approaches" as the input (or index) "approaches" some value.

New!!: Look-and-say sequence and Limit (mathematics) · See more »

Mathematical constant

A mathematical constant is a special number that is "significantly interesting in some way".

New!!: Look-and-say sequence and Mathematical constant · See more »

Mathematics

Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.

New!!: Look-and-say sequence and Mathematics · See more »

MathWorld

MathWorld is an online mathematics reference work, created and largely written by Eric W. Weisstein.

New!!: Look-and-say sequence and MathWorld · See more »

Periodic sequence

In mathematics, a periodic sequence (sometimes called a cycle) is a sequence for which the same terms are repeated over and over: The number p of repeated terms is called the period (period).

New!!: Look-and-say sequence and Periodic sequence · See more »

Pigeonhole principle

In mathematics, the pigeonhole principle states that if items are put into containers, with, then at least one container must contain more than one item.

New!!: Look-and-say sequence and Pigeonhole principle · See more »

Polynomial

In mathematics, a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

New!!: Look-and-say sequence and Polynomial · See more »

Radix

In mathematical numeral systems, the radix or base is the number of unique digits, including zero, used to represent numbers in a positional numeral system.

New!!: Look-and-say sequence and Radix · See more »

Robert Morris (cryptographer)

Robert H. Morris Sr. (July 25, 1932 – June 26, 2011) was an American cryptographer and computer scientist.

New!!: Look-and-say sequence and Robert Morris (cryptographer) · See more »

Rosetta Code

Rosetta Code is a wiki-based programming chrestomathy website with implementations of common algorithms and solutions to various programming problems in many different programming languages.

New!!: Look-and-say sequence and Rosetta Code · See more »

Run-length encoding

Run-length encoding (RLE) is a very simple form of lossless data compression in which runs of data (that is, sequences in which the same data value occurs in many consecutive data elements) are stored as a single data value and count, rather than as the original run.

New!!: Look-and-say sequence and Run-length encoding · See more »

The Cuckoo's Egg

The Cuckoo’s Egg: Tracking a Spy Through the Maze of Computer Espionage is a 1989 book written by Clifford Stoll.

New!!: Look-and-say sequence and The Cuckoo's Egg · See more »

Transuranium element

The transuranium elements (also known as transuranic elements) are the chemical elements with atomic numbers greater than 92 (the atomic number of uranium).

New!!: Look-and-say sequence and Transuranium element · See more »

Zero of a function

In mathematics, a zero, also sometimes called a root, of a real-, complex- or generally vector-valued function f is a member x of the domain of f such that f(x) vanishes at x; that is, x is a solution of the equation f(x).

New!!: Look-and-say sequence and Zero of a function · See more »

Redirects here:

1,11, 21, 1211,111221, Audioactive decay, Conway constant, Conway sequence, Conway's constant, Conway's cosmological theorem, Conway's lost cosmological theorem, Cookoo's Egg, Cosmological Theorem, Look and Say sequence, Look and say sequence, Look-say sequence, Morris Number Sequence, Morris number sequence, Morris series, Pea Pattern, Pea pattern.

References

[1] https://en.wikipedia.org/wiki/Look-and-say_sequence

OutgoingIncoming
Hey! We are on Facebook now! »