# A215042 (b-file synthesized from sequence entry)
0 0
1 7
2 141
3 2576
4 46347
5 831985
6 14930208
7 267913919
8 4807525989
9 86267568688
10 1548008749155
11 27777890017577
12 498454011832896
13 8944394323670071
14 160500643816049277
15 2880067194369984080
16 51680708854856144763
17 927372692193073296289