# A038725 (b-file synthesized from sequence entry)
0 1
1 2
2 11
3 64
4 373
5 2174
6 12671
7 73852
8 430441
9 2508794
10 14622323
11 85225144
12 496728541
13 2895146102
14 16874148071
15 98349742324
16 573224305873
17 3340996092914
18 19472752251611
19 113495517416752
20 661500352248901