# A108289 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 17
4 72
5 357
6 2022
7 12900
8 91448
9 711180
10 6004981
11 54619489
12 531854438
13 5515551251
14 60642234815
15 704106298738
16 8603658260904
17 110306422692488
18 1479905106340895
19 20727595895871297
20 302423908621734606