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A001335
Number of n-step polygons on hexagonal lattice.
(Formerly M4828 N2065)
+0
2
0, 0, 12, 24, 60, 180, 588, 1968, 6840, 24240, 87252, 318360, 1173744, 4366740, 16370700, 61780320, 234505140, 894692736, 3429028116, 13195862760, 50968206912
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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