# A251667 (b-file synthesized from sequence entry)
0 1
1 6
2 107
3 3508
4 171741
5 11280842
6 933014767
7 93212094024
8 10925496633401
9 1470493880790382
10 223555405538724819
11 37892802280129883324
12 7086076189702624109653
13 1449303152891376476830962
14 321848482510755456019058519
15 77124029495405859198280522768