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A216946
Number of standardized 4-connected corner polyominoes of inner site-perimeter n.
0
1, 3, 12, 46, 209, 976, 4767, 23680, 119940
OFFSET
2,2
LINKS
J. Fortier, A. Goupil, J. Lortie and J. Tremblay, Exhaustive generation of gominoes, Theoretical Computer Science, 502 (2013) 76-87
CROSSREFS
Sequence in context: A108368 A264514 A344684 * A303191 A176310 A368030
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 20 2012
STATUS
approved