# A103275 (b-file synthesized from sequence entry)
1 2
2 3
3 11
4 29
5 226
6 603
7 4201
8 10190
9 61830
10 818624
11 1885918
12 22642064
13 115299912
14 256604379
15 1271523594
16 13524323830
17 140047498472
18 302827228170
19 3049947866219
20 14117734283755
21 30195076020892
22 294858942948153