id:A070764 - OEIS Search Results

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Number of polyiamonds with n cells, with holes.

+0
4

0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 25, 108, 450, 1713, 6267, 21988, 75185, 251590, 828408, 2692630, 8661287, 27624040, 87479663, 275392248, 862593661, 2690285608, 8359581585, 25893044920 (list; graph; listen)

	OFFSET	`1,10`
	CROSSREFS	`Equals A000577(n) - A070765(n). Cf. A001419, A038144.` `Adjacent sequences: A070761 A070762 A070763 this_sequence A070765 A070766 A070767` `Sequence in context: A027949 A082044 A042651 this_sequence A110051 A013187 A069639`
	KEYWORD	`hard,nonn`
	AUTHOR	`Joseph Myers (jsm(AT)polyomino.org.uk), May 05 2002`
	EXTENSIONS	`More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 11 2003`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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