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A089458 Number of n-celled polyominoes with exactly 6 holes. 4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 2131, 38022, 480713 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,23

LINKS

Table of n, a(n) for n=1..26.

Tomás Oliveira e Silva, Animal enumerations on the {4,4} Euclidean tiling

CROSSREFS

Cf. A001419, A057418, A089454, A089455, A089456, A089457.

Sequence in context: A035801 A239739 A017727 * A283280 A082559 A008790

Adjacent sequences:  A089455 A089456 A089457 * A089459 A089460 A089461

KEYWORD

hard,nonn

AUTHOR

Joseph Myers, Nov 04 2003

STATUS

approved

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Last modified December 2 17:48 EST 2021. Contains 349445 sequences. (Running on oeis4.)