# A165726 (b-file synthesized from sequence entry)
0 1
1 50
2 2450
3 120050
4 5882450
5 288240050
6 14123762450
7 692064360050
8 33911153642450
9 1661646528478825
10 81420679895402400
11 3989613314871777600
12 195491052428573042400
13 9579061568993020137600
14 469374016880312098682400