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A120646 Number of 2-anisohedral polyominoes of order n. 0
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; text; internal format)
OFFSET

1,9

LINKS

Table of n, a(n) for n=1..25.

Joseph Myers, Polyomino tiling

CROSSREFS

Sequence in context: A209829 A209848 A093104 * A041116 A250322 A135797

Adjacent sequences:  A120643 A120644 A120645 * A120647 A120648 A120649

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 18 2006

EXTENSIONS

Adjusted to offset 1 and a(24) and a(25) added by Joseph Myers, Nov 17 2010

STATUS

approved

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Last modified February 21 04:18 EST 2019. Contains 320371 sequences. (Running on oeis4.)