# A025980 (b-file synthesized from sequence entry)
0 1
1 25
2 413
3 5717
4 71949
5 854517
6 9768541
7 108728389
8 1186801517
9 12764197589
10 135709713789
11 1429715165541
12 14950747454605
13 155389970948341
14 1606842713958557
15 16544916327312773
16 169737574552541613