# A217493 (b-file synthesized from sequence entry)
1 2
2 3
3 4
4 9
5 11
6 18
7 19
8 27
9 28
10 46
11 50
12 53
13 80
14 155
15 203
16 280
17 451
18 4963
19 6167
20 9687
21 10083
22 31450