# A099369 (b-file synthesized from sequence entry)
0 0
1 1
2 64
3 4225
4 278784
5 18395521
6 1213825600
7 80094094081
8 5284996383744
9 348729667233025
10 23010873040995904
11 1518368891038496641
12 100189335935499782400
13 6610977802851947141761
14 436224345652293011573824