Central binomial coefficients: C(2*n,n) = (2*n)!/(n!)^2.
1, 2, 6, 20, 70, 252, 924, 3432, 12870, 48620, 184756, 705432, 2704156, 10400600
3 seqfan posts
Fri Feb 18 14:28:55 CET 2011 [seqfan] More results on Basket Weave tiling paths
Tue Aug 11 19:25:52 CEST 2009 [seqfan] All k-bit substrings of a binary string
Mon Jun 29 21:15:37 CEST 2009 [seqfan] Re: Binary arrays with both rows and cols sorted, symmetries?
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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