# A177558 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 90
4 2401
5 101761
6 6291216
7 534649500
8 59805912601
9 8519381695801
10 1505829663622626
11 323403835613234310
12 82950935886564603001
13 25045332571083387933241
14 8792814340394735774002236
15 3551704765357254157594658520
16 1635557840926288462033032891601