# A113109 (b-file synthesized from sequence entry)
0 1
1 2
2 16
3 440
4 43600
5 16698560
6 26098464448
7 172513149018752
8 4938593053649344000
9 622793203804403960906240
10 350552003258337075784341271552
11 890153650520295355798989668668129280