# A122743 (b-file synthesized from sequence entry)
0 1
1 6
2 56
3 960
4 31744
5 2064384
6 266338304
7 68451041280
8 35115652612096
9 35993612646875136
10 73750947497819242496
11 302157667927362455470080
12 2475577847115856892504571904
13 40562343327224770087344704323584
14 1329187430965708569562959165777772544