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Search: id:A056884
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A056884 Number of asymmetric n-celled polyominoes without holes. +0
1
0, 0, 0, 1, 5, 20, 84, 311, 1165, 4276, 15802, 58280, 216070, 803116, 2997360, 11221443, 42147842, 158749808, 599513836, 2269390757, 8609258335, 32725209938, 124621150623, 475367241264, 1816100804241, 6948222137523 (list; graph; listen)
OFFSET

1,5
LINKS

Tomas Oliveira e Silva, Enumeration of polyominoes

CROSSREFS

Sequence in context: A033131 A022021 A030520 this_sequence A006749 A002213 A099949

Adjacent sequences: A056881 A056882 A056883 this_sequence A056885 A056886 A056887

KEYWORD

nonn

AUTHOR

njas, Sep 03 2000

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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