# A025988 (b-file synthesized from sequence entry)
0 1
1 22
2 315
3 3740
4 40121
5 405042
6 3935095
7 37284280
8 347419941
9 3201202862
10 29273641475
11 266321046420
12 2414445954961
13 21837387317482
14 197190900709455
15 1778695458106160
16 16032377546389181
17 144437380023772902