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- Look-and-say_sequence abstract "In mathematics, the look-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, ... (sequence A005150 in OEIS).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. For example: 1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, then one 1" or 1211. 1211 is read off as "one 1, then one 2, then two 1s" or 111221. 111221 is read off as "three 1s, then two 2s, then one 1" or 312211.The look-and-say sequence was introduced and analyzed by John Conway in his paper "The Weird and Wonderful Chemistry of Audioactive Decay" published in Eureka 46, 5–18 in 1986.The idea of the look-and-say sequence is similar to that of run-length encoding.If we start with any digit d from 0 to 9 then d will remain indefinitely as the last digit of the sequence. For d different from 1, the sequence starts as follows: d, 1d, 111d, 311d, 13211d, 111312211d, 31131122211d, …Ilan Vardi has called this sequence, starting with d = 3, the Conway sequence (sequence A006715 in OEIS).".
- Look-and-say_sequence thumbnail Conway's_constant.svg?width=300.
- Look-and-say_sequence wikiPageExternalLink a-derivation-of-conways-degree-71-look-and-say-polynomial.
- Look-and-say_sequence wikiPageExternalLink lookandsay.
- Look-and-say_sequence wikiPageExternalLink looknsay.htm.
- Look-and-say_sequence wikiPageID "563980".
- Look-and-say_sequence wikiPageRevisionID "597939506".
- Look-and-say_sequence hasPhotoCollection Look-and-say_sequence.
- Look-and-say_sequence name "Decimal expansion of Conway's constant".
- Look-and-say_sequence sequencenumber "A014715".
- Look-and-say_sequence title "Look and Say Sequence".
- Look-and-say_sequence urlname "LookandSaySequence".
- Look-and-say_sequence subject Category:Algebraic_numbers.
- Look-and-say_sequence subject Category:Base-dependent_integer_sequences.
- Look-and-say_sequence subject Category:Mathematical_constants.
- Look-and-say_sequence type Abstraction100002137.
- Look-and-say_sequence type AlgebraicNumber113730902.
- Look-and-say_sequence type AlgebraicNumbers.
- Look-and-say_sequence type Arrangement107938773.
- Look-and-say_sequence type Base-dependentIntegerSequences.
- Look-and-say_sequence type Cognition100023271.
- Look-and-say_sequence type ComplexNumber113729428.
- Look-and-say_sequence type Concept105835747.
- Look-and-say_sequence type Constant105858936.
- Look-and-say_sequence type Content105809192.
- Look-and-say_sequence type DefiniteQuantity113576101.
- Look-and-say_sequence type Group100031264.
- Look-and-say_sequence type Idea105833840.
- Look-and-say_sequence type IrrationalNumber113730584.
- Look-and-say_sequence type MathematicalConstants.
- Look-and-say_sequence type Measure100033615.
- Look-and-say_sequence type Number113582013.
- Look-and-say_sequence type Ordering108456993.
- Look-and-say_sequence type PsychologicalFeature100023100.
- Look-and-say_sequence type Quantity105855125.
- Look-and-say_sequence type RealNumber113729902.
- Look-and-say_sequence type Sequence108459252.
- Look-and-say_sequence type Series108457976.
- Look-and-say_sequence comment "In mathematics, the look-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, ... (sequence A005150 in OEIS).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. For example: 1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, then one 1" or 1211.".
- Look-and-say_sequence label "Constante de Conway".
- Look-and-say_sequence label "Conway-Folge".
- Look-and-say_sequence label "Costante di Conway".
- Look-and-say_sequence label "Look-and-say sequence".
- Look-and-say_sequence label "Rij van Conway".
- Look-and-say_sequence label "Suite de Conway".
- Look-and-say_sequence label "外觀數列".
- Look-and-say_sequence sameAs Conway-Folge.
- Look-and-say_sequence sameAs Constante_de_Conway.
- Look-and-say_sequence sameAs Suite_de_Conway.
- Look-and-say_sequence sameAs Costante_di_Conway.
- Look-and-say_sequence sameAs 읽고_말하기_수열.
- Look-and-say_sequence sameAs Rij_van_Conway.
- Look-and-say_sequence sameAs m.02qg64.
- Look-and-say_sequence sameAs Q1129511.
- Look-and-say_sequence sameAs Q1129511.
- Look-and-say_sequence sameAs Look-and-say_sequence.
- Look-and-say_sequence wasDerivedFrom Look-and-say_sequence?oldid=597939506.
- Look-and-say_sequence depiction Conway's_constant.svg.
- Look-and-say_sequence isPrimaryTopicOf Look-and-say_sequence.
