# A125447 (b-file synthesized from sequence entry)
0 1
1 12
2 132
3 1380
4 15260
5 169252
6 1879782
7 20881502
8 231972500
9 2577002988
10 28628206202
11 318033966218
12 3533075401202
13 39249335918974
14 436025331971998
15 4843854954088810
16 53810935050499732
17 597791791563925916