# A184890 (b-file synthesized from sequence entry)
0 1
1 60
2 12600
3 3640000
4 1218262500
5 443837394000
6 170877396690000
7 68390813462400000
8 28171137810976875000
9 11864338450927462500000
10 5085530033605547526000000
11 2211345876971860770960000000