# A046709 (b-file synthesized from sequence entry)
1 25200
2 982800
3 1562400
4 5358990
5 6854400
6 60933600
7 267321600
8 450964684800
9 798939187200
10 17587622707200
11 31158628300800
12 118216784402841600
13 459775632811622400
14 1936908127288531353600
15 75539416964252722790400