# A129923 (b-file synthesized from sequence entry)
0 24
1 144
2 1008
3 8064
4 72576
5 725760
6 7983360
7 95800320
8 1245404160
9 17435658240
10 261534873600
11 4184557977600
12 71137485619200
13 1280474741145600
14 24329020081766400
15 486580401635328000
16 10218188434341888000