Binomial coefficients C(2n,n-1).
0, 1, 4, 15, 56, 210, 792, 3003, 11440, 43758, 167960, 646646, 2496144, 9657700
3 seqfan posts
Sun Sep 5 17:11:23 CEST 2010 [seqfan] Re: A misprint in formula for A001791
Sun Sep 5 17:09:05 CEST 2010 [seqfan] Re: A misprint in formula for A001791
Sun Sep 5 15:24:05 CEST 2010 [seqfan] A misprint in formula for A001791
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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