# A296661 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 15
4 60
5 381
6 2286
7 16731
8 133848
9 1211193
10 12111930
11 133290279
12 1599483348
13 20793814965
14 291113409510
15 4366705925619
16 69867294809904
17 1187744054815089
18 21379392986671602
19 406208467134180927
20 8124169342683618540