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A056882 Number of n-celled polyominoes without holes, symmetric about diagonal 2. +0
1
0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 2, 1, 2, 3, 4, 4, 6, 7, 12, 12, 17, 18, 33, 34, 51, 52, 93, 100 (list; graph; listen)
OFFSET

1,11
LINKS

Tomas Oliveira e Silva, Enumeration of polyominoes

CROSSREFS

Adjacent sequences: A056879 A056880 A056881 this_sequence A056883 A056884 A056885

Sequence in context: A031231 A030562 A026833 this_sequence A035534 A082854 A086742

KEYWORD

nonn

AUTHOR

njas, Sep 03 2000

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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