# A126520 (b-file synthesized from sequence entry)
0 1
1 25
2 205
3 1725
4 14645
5 124977
6 1069941
7 9179469
8 78869491
9 678323799
10 5838030793
11 50269401543
12 432996699399
13 3730477803939
14 32144938184273
15 277017865876053
16 2387456054541987
17 20577155216208681
18 177357954676723141