List questions from combinatorics-on-words

Published on 26 Mar 2026 - 7:55

131

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Generating function for strings in $\{a,b,c\}^*$ in terms of block decompositions

Published on 26 Mar 2026 - 6:25

52

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Question on word combinations with exclusivity

Published on 27 Mar 2026 - 8:09

115

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For what $n$ is $W_n$ finite?

Published on 10 Apr 2026 - 20:36

643

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How many n-letter words are there, such that number of letters "a" is even?

Published on 26 Mar 2026 - 6:22

162

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Are all Fibonacci words uniquely represented as concatenation of two palindromes?

Published on 25 Mar 2026 - 6:06

48

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How many word can we make with infinited times of $B$, $D$ $M$ and only one $O$?

Published on 26 Mar 2026 - 6:22

42

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Does This Property of Words Have a Name?

Published on 27 Mar 2026 - 12:12

1k

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How many essentially different strings are there of length $\leq n$ and over an alphabet of size $|\Sigma| = m$?

Published on 26 Mar 2026 - 6:22

112

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In a word containing $k$ A's, how many permutations place at least $n$ A's consecutively?

Published on 26 Mar 2026 - 6:21

30

Views

Solving recurrence equation for lossy duplication

Published on 26 Mar 2026 - 6:18

211

Views

Counting binary Lyndon words with fixed degree in one letter

Published on 06 May 2026 - 13:33

542

Views

How many n strings are there of letters of english alphabet in which there are no consecutive z's?

Published on 26 Mar 2026 - 6:23

180

Views

How many letters suffice to construct words with no repetition?

Published on 26 Mar 2026 - 6:21

59

Views

Combinatorics: Choice of Passwords

Published on 27 Mar 2026 - 12:14

List Question

How to parse mathematical notation for this combinatorial problem?

Generating function for strings in $\{a,b,c\}^*$ in terms of block decompositions

Question on word combinations with exclusivity

For what $n$ is $W_n$ finite?

How many n-letter words are there, such that number of letters "a" is even?

Are all Fibonacci words uniquely represented as concatenation of two palindromes?

How many word can we make with infinited times of $B$, $D$ $M$ and only one $O$?

Does This Property of Words Have a Name?

How many essentially different strings are there of length $\leq n$ and over an alphabet of size $|\Sigma| = m$?

In a word containing $k$ A's, how many permutations place at least $n$ A's consecutively?

Solving recurrence equation for lossy duplication

Counting binary Lyndon words with fixed degree in one letter

How many n strings are there of letters of english alphabet in which there are no consecutive z's?

How many letters suffice to construct words with no repetition?

Combinatorics: Choice of Passwords

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