A093990 Number of one-sided n-celled polyzebras (or zebra-move-connected polyominoes).

1, 2, 8, 68, 550, 5404, 54768, 581868, 6329407, 70335294, 794064734, 9083306888, 105021662154

Offset

1,2

Comments

A zebra is a (2,3)-leaper. A polyzebra need not be connected in the usual edge-connected sense.

Links

Table of n, a(n) for n=1..13.

Wikipedia, Zebra.

Crossrefs

Cf. A093877 (fixed), A093989 (free), A093991, A093992, A030445 (polyknights).

Sequence in context: A053922 A385051 A030445 * A393837 A394195 A361213

Adjacent sequences: A093987 A093988 A093989 * A093991 A093992 A093993

Keyword

nonn,more

Author

Joseph Myers, May 25 2004

Extensions

a(12)-a(13) from John Mason, Jan 13 2023

Status

approved