# A007711 (b-file synthesized from sequence entry)
1 0
2 1
3 4
4 18
5 105
6 636
7 4710
8 38508
9 352902
10 3563297
11 39467081
12 475326930
13 6198134207
14 86912048471
15 1305146666727
16 20897040866280