Number of n-celled polyominoes with bilateral symmetry.
1, 1, 2, 3, 6, 10, 20, 34, 70, 121, 250, 441, 912, 1630, 3375, 6092, 12624, 22961
2 seqfan posts
Mon Dec 29 22:36:34 CET 2008 [seqfan] Re: Two-fold symmetry sequence
Mon Dec 29 22:12:52 CET 2008 [seqfan] Re: Two-fold symmetry sequence
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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