# A058478 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 5
4 46
5 534
6 7596
7 127756
8 2479856
9 54560512
10 1341716960
11 36468949824
12 1085680795200
13 35131589529152
14 1227777836217856
15 46086892351150592
16 1849266301464495616
17 78990342571085637120
18 3578513340735623076864