# A165182 (b-file synthesized from sequence entry)
0 1
1 50
2 2450
3 120050
4 5882450
5 288240050
6 14123762450
7 692064360050
8 33911153641225
9 1661646528360000
10 81420679886700000
11 3989613314304240000
12 195491052393848820000
13 9579061566952704120000
14 469374016763733986940000