# A169298 (b-file synthesized from sequence entry)
0 1
1 45
2 1980
3 87120
4 3833280
5 168664320
6 7421230080
7 326534123520
8 14367501434880
9 632170063134720
10 27815482777927680
11 1223881242228817920
12 53850774658067988480
13 2369434084954991493120
14 104255099738019625697280