# A146670 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 9
10 19
11 33
12 71
13 215
14 791
15 3245
16 13621
17 57411
18 277797
19 1527109
20 9994857
21 71286549
22 571498723