# A125784 (b-file synthesized from sequence entry)
0 1
1 5
2 21
3 91
4 433
5 2307
6 13804
7 92433
8 688611
9 5670713
10 51291468
11 506502769
12 5430460072
13 62894124926
14 783259655434
15 10445143907067
16 148592182641759
17 2247301621235992
18 36021020633412788
19 610161098104988668