# A173311 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 9
4 25
5 88
6 406
7 2451
8 19450
9 202681
10 2769965
11 49519392
12 1154411138
13 34978238590
14 1373171398361
15 69648249299517
16 4552778914494604