# A102922 (b-file synthesized from sequence entry)
0 0
1 4
2 40
3 1128
4 61120
5 5466320
6 735847800
7 139910204080
8 35858685086352
9 11953187179149408
10 5037776918810353960
11 2623732639426967662648
12 1656984556235159516822400
13 1248959074762601252295551168