# A150513 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 25
4 103
5 412
6 1767
7 7448
8 32787
9 142374
10 636505
11 2815581
12 12715041
13 56978712
14 259309861
15 1173034613
16 5369403379
17 24464452536
18 112502096435
19 515503557713
20 2379609901159
21 10953729138874
22 50723287589467
23 234370374685996
24 1088228618777343
25 5044197283684340
26 23475790204876997
27 109110088285581615