# A132612 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 39
4 648
5 15465
6 483240
7 18685905
8 861282832
9 46085893011
10 2807152825020
11 191731595897600
12 14510053796849640
13 1205013817282706730
14 108941005329522201360
15 10650027832902977866245
16 1119401271751383414197280
17 125879457463215695125460535