# A036729 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 6 4 31 5 171 6 1018 7 6320 8 40407 9 264494 10 1763721 11 11938126 12 81811270 13 566505623 14 3957683000 15 27860809916 16 197440008065 17 1407393565655 18 10084285158674 19 72590696159500 20 524707835158671 21 3806969433487560 22 27715036541611090