cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A376688 List of palindromic subwords (or palindromic factors) of the Kolakoski sequence (A000002).

Original entry on oeis.org

1, 2, 11, 22, 121, 212, 1221, 2112, 11211, 22122, 121121, 212212, 1221221, 2112112, 12122121, 21211212, 112212211, 221121122, 1121221211, 2212112122, 12211211221, 21122122112, 122121121221, 211212212112, 1211221221121, 2122112112212, 11221211212211
Offset: 1

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Author

Rémy Sigrist, Oct 01 2024

Keywords

Comments

Empirically, for any m > 0, there are two m-digit terms, say w1 and w2, and replacing 1's by 2's and 2's by 1's in w1 yields w2.

Crossrefs

Intersection of A002113 and A376677.

Programs

  • PARI
    \\ See Links section.
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