# A147257 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 5
7 17
8 39
9 137
10 661
11 3965
12 30475
13 261877
14 2593597
15 32463645
16 507974205
17 9631596681
18 224195557727
19 6341197277447
20 216685113312141
21 8987183183859385