# A025997 (b-file synthesized from sequence entry)
0 1
1 24
2 375
3 4850
4 56481
5 616164
6 6434155
7 65146950
8 644889861
9 6275802104
10 60272841135
11 572861926650
12 5399415089641
13 50546032304844
14 470534835243315
15 4359828735795950
16 40238834684119821
17 370153792218396384