# A121429 (b-file synthesized from sequence entry)
0 1
1 2
2 18
3 250
4 4520
5 99351
6 2556806
7 75190410
8 2483617140
9 90955908010
10 3655774038653
11 159938142409890
12 7564604603286913
13 384576889110665055
14 20912407157570989950
15 1211142337261176799610
16 74427504634177621877538