id:A056882 - OEIS Search Results

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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	`Sequence in context: A031231 A030562 A026833 this_sequence A035534 A082854 A086742` `Adjacent sequences: A056879 A056880 A056881 this_sequence A056883 A056884 A056885`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 03 2000`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.