# A128328 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 30
4 200
5 1435
6 10900
7 86799
8 720074
9 6196295
10 55135043
11 506125404
12 4784680169
13 46516469860
14 464550190798
15 4761343733469
16 50044839978614
17 539051253692777
18 5946806890025709
19 67156408547628636
20 775935817487472046