# A060913 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 18
4 157
5 1656
6 20727
7 300784
8 4955337
9 91229616
10 1853584651
11 41147256624
12 989990665677
13 25647894553048
14 711630284942319
15 21049888453838136
16 661180220075555473
17 21976354057916680416