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A030224
Triangular polyominoes (n-iamonds) without bilateral symmetry (holes are allowed).
+0
5
0, 0, 0, 1, 2, 7, 19, 54, 147, 418, 1150, 3254, 9138, 25953, 73717, 210719, 603370, 1734739, 4998542, 14444576, 41829991, 121406927, 353029078, 1028417980, 3000754648, 8769118355, 25661830891, 75194886765
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.
AT&T Labs Research
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