# A030860 (b-file synthesized from sequence entry)
1 2
2 5
3 15
4 61
5 309
6 1856
7 12997
8 103981
9 935836
10 9358363
11 102941998
12 1235303982
13 16058951777
14 224825324882
15 3372379873234
16 53958077971757
17 917287325519884
18 16511171859357918
19 313712265327800453
20 6274245306556009077