# A061697 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 1
4 1
5 1
6 201
7 1226
8 5587
9 493333
10 8910253
11 109739620
12 6832444928
13 251336859489
14 6402632091649
15 369288128260091
16 21333939590516867
17 941843896620169405
18 60266201588496408645
19 4623833509894543300868
20 309412778502377193367456
21 24102475277979402591991181