# A054950 (b-file synthesized from sequence entry)
1 0
2 1
3 3
4 76
5 8220
6 3418216
7 5156362008
8 28205998918336
9 571801003320734400
10 44006976469834509225856
11 13095012982298536065778624128
12 15245644966564725709168192019570176
13 69953982671396722666217758540260522923520
14 1270721533437616701720124856867026526491583190016