List questions from combinatorics-on-words | MathQA

find the 2002th term of a binary sequence

Published on 23 Oct 2022 - 17:49

How many words of length $n$ can be formed which do not contain $k$ consecutive repeated characters?

Published on 07 Nov 2022 - 19:01

Counting words from 3 letter alphabet based on various conditions.

Published on 08 Nov 2022 - 22:49

What is the number of series $(x_1,x_2,x_3,x_4,x_5,x_6,x_7) \in \{0,1,2\}^7$ that do not contain the sequence $010$ in any three consecutive places?

Published on 26 Nov 2022 - 19:49

Find the number of $\{a,b,c,d\}$-strings of length $n$

Published on 03 Dec 2022 - 4:15

Does perfect knowledge help you prevent a subword in a word?

Published on 17 Dec 2022 - 22:12

The word problem for groups preceded PH Theorem as a practical undecidability result

Published on 30 Dec 2022 - 5:48

Complete Codes and Kraft Inequality

Published on 25 Mar 2026 - 14:20