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A359688
a(n) is the number of asymmetrical polyiamonds of n cells.
0
0, 0, 0, 0, 4, 10, 36, 94, 294, 794, 2300, 6394, 18266, 51592, 147426, 420512, 1206740, 3466876
OFFSET
1,5
CROSSREFS
Cf. A000577.
Sequence in context: A287220 A220205 A196880 * A358212 A088013 A149179
KEYWORD
nonn,more
AUTHOR
John Mason, Jan 11 2023
STATUS
approved