# A228515 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 6
5 8
6 12
7 20
8 52
9 308
10 8500
11 2105652
12 17181974836
13 36028814200938804
14 618970019678718951650500916
15 22300745198530623760505737951367313156481332