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.

A093877 Number of fixed n-celled polyzebras (or zebra-move-connected polyominoes).

Original entry on oeis.org

1, 4, 28, 234, 2162, 21272, 218740, 2323730, 25314097, 281299736, 3176220308, 36332751862, 420086210688
Offset: 1

Views

Author

Guenter Stertenbrink (Sterten(AT)aol.com), May 21 2004

Keywords

Comments

A polyzebra is a (2,3) leaper. A polyzebra need not be connected in the usual edge-connected sense.
The first 9 terms coincide with A151830. - John Mason, Jun 24 2025

Crossrefs

Cf. A030444 (polyknights), A093989, A093990, A093991, A093992.

Extensions

a(11) from Joseph Myers, May 21 2004
a(12) (computed by Gadi Aleksandrowicz's program) by Gill Barequet, Jun 09 2011
a(13) from John Mason, Jan 13 2023

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