# A106391 (b-file synthesized from sequence entry)
0 0
1 1
2 4
3 18
4 80
5 365
6 1692
7 7945
8 37648
9 179595
10 861020
11 4143832
12 20004096
13 96810779
14 469508340
15 2281123530
16 11100465216
17 54093131147
18 263929559436
19 1289217255934
20 6303934406640
21 30853639964847
22 151139139048084