# A144727 (b-file synthesized from sequence entry)
1 11
2 31
3 151
4 1051
5 10501
6 126001
7 1764001
8 26460001
9 502740001
10 10557540001
11 274496040001
12 7960385160001
13 238811554800001
14 9313650637200001
15 381859676125200001
16 21384141863011200001
17 1325816795506694400001