# A222472 (b-file synthesized from sequence entry)
1 1
2 2
3 9
4 42
5 237
6 1548
7 11547
8 97020
9 907821
10 9369270
11 105785433
12 1297533006
13 17185285377
14 244486594296
15 3718854770571
16 60235136112024
17 1035153878216121
18 18813475216226250
19 360561490742947113
20 7267670240507621010