# A367041 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 26
4 168
5 1195
6 8988
7 70318
8 566388
9 4665221
10 39113732
11 332691758
12 2863778072
13 24900264326
14 218372530380
15 1929363592870
16 17157018725000
17 153442147343648
18 1379250344938676
19 12453816724761706
20 112907775890596400
21 1027394297869071687