A120646 - OEIS

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A120646

Number of 2-anisohedral polyominoes of order n.

0, 0, 0, 0, 0, 0, 0, 1, 8, 41, 89, 214, 406, 874, 1107, 2210, 1316, 7380, 5450, 18211, 21866, 47702, 10390, 201834, 28784 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,9`
	LINKS	`Joseph Myers, Polyomino tiling`
	CROSSREFS	`Sequence in context: A092397 A096969 A093104 * A041116 A135797 A171714` `Adjacent sequences: A120643 A120644 A120645 * A120647 A120648 A120649`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 18 2006`
	EXTENSIONS	`Adjusted to offset 1 and a(24) and a(25) added by Joseph Myers (jsm(AT)polyomino.org.uk), Nov 17 2010`

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Last modified February 15 17:46 EST 2012. Contains 205835 sequences.