A121310 - OEIS

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A121310

Number of 4-anisohedral polyiamonds of order n.

0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 1, 2, 0, 7, 1, 3, 5, 1, 4, 4, 6, 4, 13, 4, 17, 13, 8, 2, 20 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,11`
	LINKS	`Joseph Myers, Polyomino tiling`
	CROSSREFS	`Sequence in context: A139158 A055135 A197522 * A024356 A143947 A073781` `Adjacent sequences: A121307 A121308 A121309 * A121311 A121312 A121313`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 25 2006`
	EXTENSIONS	`Adjusted to offset 1 and a(29) and a(30) added by Joseph Myers (jsm(AT)polyomino.org.uk), Nov 21 2010`

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Last modified February 17 04:56 EST 2012. Contains 205985 sequences.