# A125451 (b-file synthesized from sequence entry)
0 1
1 16
2 200
3 2248
4 28184
5 358936
6 4608164
7 59321572
8 764448248
9 9854829592
10 127060867900
11 1638314863036
12 21124741699196
13 272388388188556
14 3512262279620630
15 45288269086891558
16 583962105396237864