# A216783 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 3
6 4
7 6
8 10
9 16
10 31
11 61
12 147
13 392
14 1274
15 5036
16 25617
17 164796
18 1337848
19 13734745
20 178587364
21 2911304940
22 58919069858
23 1474647067521
24 45599075629687