# A126472 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 3
4 7
5 26
6 136
7 784
8 5189
9 40639
10 357638
11 3472240
12 37835023
13 449901885
14 5763035223
15 79697811456
16 1185091117180
17 18789393725696
18 316557520950918
19 5664877511610114
20 106815500916218123
21 2123415404236087790