# A217351 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 4
5 6
6 21
7 24
8 27
9 30
10 54
11 70
12 126
13 369
14 435
15 612
16 787
17 1275
18 2155
19 2436
20 5734
21 6016
22 16107
23 25786