# A217246 (b-file synthesized from sequence entry)
1 1
2 1
3 0
4 1
5 0
6 1
7 0
8 3
9 3
10 13
11 21
12 110
13 474
14 2545
15 18696
16 136749
17 1447003
18 18772435
19 303050079
20 6239596472