# A320254 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 16
4 125
5 1291
6 16177
7 241207
8 4153193
9 81082225
10 1770989921
11 42763506919
12 1131353484637
13 32541516492811
14 1011058416700529
15 33745374949198231
16 1204107124715441873
17 45741398365345761073
18 1843069565594762478145
19 78511973999963036415967
20 3525468554804288803649381