# A355471 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 10
4 77
5 808
6 11257
7 196072
8 4136897
9 103755904
10 3034193921
11 101901347944
12 3885951145969
13 166605168800704
14 7961498177012993
15 420976047757358776
16 24475992585921169553
17 1556007778666449968128
18 107625967130820901112833