# A177200 (b-file synthesized from sequence entry)
0 1
1 9
2 17
3 113
4 529
5 3377
6 20113
7 131761
8 859921
9 5818417
10 39713681
11 275857841
12 1933976593
13 13702864689
14 97835776145
15 703688999089
16 5092141619473
17 37053507667505
18 270930428700049
19 1989695908892593
20 14669498823228945