# A126407 (b-file synthesized from sequence entry)
0 1
1 20
2 94
3 450
4 2168
5 10486
6 50848
7 247024
8 1201730
9 5852530
10 28526860
11 139144760
12 679090456
13 3315836420
14 16196773236
15 79141717426
16 386812618952
17 1891013450430
18 9246370600422
19 45218609940844
20 221167392509842