A030448 Number of n-celled polyknights without bilateral symmetry.

0, 1, 2, 33, 260, 2648, 26105, 267195, 2755322, 28744852, 302092789, 3196248508, 34007055286

Offset

1,3

Comments

A polyknight is a variant of a polyomino in which two tiles a knight's move apart are considered adjacent. A polyknight need not be connected in the sense of a polyomino.

Links

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

Crossrefs

Cf. A030445, A030444, A030446, A030447.

Sequence in context: A002561 A379877 A181547 * A093992 A382997 A361887

Adjacent sequences: A030445 A030446 A030447 * A030449 A030450 A030451

Keyword

nonn,more

Author

David W. Wilson

Extensions

Corrected and extended by Joseph Myers, May 21 2004

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

Status

approved