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A121310
Number of 4-anisohedral polyiamonds of order n.
0
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
OFFSET
1,11
CROSSREFS
Sequence in context: A334873 A327359 A197522 * A356919 A278158 A218880
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 25 2006
EXTENSIONS
Adjusted to offset 1 and a(29) and a(30) added by Joseph Myers, Nov 21 2010
STATUS
approved