# A012337 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 0
4 3920
5 120960
6 17113536
7 2185863680
8 437574641920
9 109911351717888
10 35384622800940032
11 14042731903340822528
12 6754327139234044301312
13 3868960488190037835612160