# A101484 (b-file synthesized from sequence entry)
0 1
1 2
2 3
3 7
4 33
5 285
6 3648
7 61306
8 1270440
9 31244205
10 888288960
11 28640745684
12 1032065614715
13 41087944243649
14 1790413981105727
15 84737880414848784
16 4327877295100145382
17 237218770042549151701
18 13887772416031152573506