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A359524
Number of free holey polyiamonds of n cells with simply-connected interiors.
1
1, 4, 25, 107, 448, 1701, 6216, 21771, 74339, 248379
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OFFSET
9,2
LINKS
Table of n, a(n) for n=9..18.
FORMULA
a(n) = A070764(n) - A359523(n).
CROSSREFS
Cf. A000577, A070764, A359520, A359523.
Sequence in context: A329495 A042651 A225692 * A070764 A327646 A244746
Adjacent sequences: A359521 A359522 A359523 * A359525 A359526 A359527
KEYWORD
nonn,more
AUTHOR
John Mason, Jan 05 2023
STATUS
approved

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Last modified November 16 14:40 EST 2024. Contains 377794 sequences.
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