Schroeder's second problem (generalized parentheses); also called super-Catalan numbers or little Schroeder numbers.
1, 1, 3, 11, 45, 197, 903, 4279, 20793, 103049, 518859, 2646723, 13648869
5 seqfan posts
Fri Feb 18 14:28:55 CET 2011 [seqfan] More results on Basket Weave tiling paths
Fri Feb 18 00:22:30 CET 2011 [seqfan] Re: FW: Paths on basket weave tiling
Thu Feb 17 13:09:51 CET 2011 [seqfan] Re: Paths on basket weave tiling
Thu Feb 17 09:40:54 CET 2011 [seqfan] Paths on basket weave tiling
Tue Jan 4 05:30:45 CET 2011 [seqfan] Unlabeled super-Catalan - was unlabeled Motzkin
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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