# A008325 (b-file synthesized from sequence entry)
3 1
4 1
5 2
6 6
7 14
8 41
9 157
10 725
11 4196
12 29816
13 246644
14 2297075
15 23503477
16 260265023
17 3090336300
18 39101547971
19 524782945991
20 7443247863498
21 111221983956652
22 1746165682538497
23 28734206614035245
24 494526496354065244
25 8883865784392246280
26 166286434745252091055
27 3237719048384605059117
28 65477287940472122129194