# A071555 (b-file synthesized from sequence entry)
3 6
4 36
5 386
6 5006
7 85086
8 1616616
9 37182146
10 1078282206
11 33426748356
12 1236789689136
13 50708377254536
14 2180460221945006
15 102481630431415236
16 5431526412865007456
17 320460058359035439846
18 19548063559901161830546