# A013357 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 90
4 2520
5 126630
6 9727740
7 979548570
8 129584342160
9 21655877754510
10 4450716903531780
11 1102163137590334050
12 323261459451529176600
13 110722946709029745152790
14 43768619617333612645900620