# A145955 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 3
5 9
6 23
7 125
8 821
9 6239
10 71403
11 1048093
12 19913069
13 517074745
14 17642361171
15 795865550951
16 47901047706833
17 3815017258032049
18 403246928224172293
19 56605968541991726917
20 10536114891916229568297
21 2602764408693859006627701