# A215817 (b-file synthesized from sequence entry)
0 3
1 6
2 19
3 66
4 237
5 866
6 3202
7 11948
8 44917
9 169914
10 646134
11 2467988
12 9462498
13 36398004
14 140399901
15 542894726
16 2103745125
17 8167514346
18 31762430143
19 123704647562
20 482435457922
21 1883712663668
22 7363103647479
23 28809291337986
24 112820819490970
25 442175629583316