# A116878 (b-file synthesized from sequence entry)
0 1
1 1
2 10
3 244
4 8488
5 350416
6 15951520
7 772998976
8 39116022400
9 2043110206720
10 109327631034880
11 5962676777841664
12 330245816572389376
13 18524490234081366016
14 1050217217793635295232
15 60082184145887689129984