# A280378 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 6
5 144
6 1440
7 1036800
8 326592000
9 1463132160000
10 6636767477760000
11 24083501823295488000000
12 278164446059062886400000000
13 133241214725404817086218240000000000
14 1851999588197236795571599048704000000000000
15 79730449087475946864047275218548293632000000000000