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A030448 Number of n-celled polyknights without bilateral symmetry. 4
0, 1, 2, 33, 260, 2648, 26105, 267195, 2755322, 28744852, 302092789 (list; graph; refs; listen; history; text; internal format)
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..11.

CROSSREFS

Cf. A030445, A030444, A030446, A030447.

Sequence in context: A228542 A002561 A181547 * A093992 A294272 A231595

Adjacent sequences:  A030445 A030446 A030447 * A030449 A030450 A030451

KEYWORD

nonn

AUTHOR

David W. Wilson

EXTENSIONS

Corrected and extended by Joseph Myers, May 21, 2004

STATUS

approved

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Last modified November 16 15:53 EST 2018. Contains 317274 sequences. (Running on oeis4.)