# A087360 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 5
5 6
6 8
7 12
8 59
9 72
10 812
11 1523
12 47051
13 234380
14 82528328
15 963837743
16 8386720250208
17 15040477267097648
18 562429063569593838374096
19 9285393339731985604589835104960
20 631311818053863204637859662148296083530450400