# A110957 (b-file synthesized from sequence entry)
1 1
2 10
3 104
4 1128
5 13008
6 173376
7 2634624
8 42422400
9 722304000
10 13698201600
11 286505164800
12 6267431116800
13 143150760345600
14 3551498315366400
15 91568579493888000
16 2450311107084288000
17 67966128937598976000