Number of different lattice paths running from (0,0) to (n,0) using steps from S={(k,k) or (k,-k): k positive integer} that never go below x-axis.
1, 1, 5, 29, 185, 1257, 8925, 65445, 491825, 3768209, 29324405, 231153133
1 seqfan posts
Fri Feb 18 14:28:55 CET 2011 [seqfan] More results on Basket Weave tiling paths