# A034732 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 7
5 16
6 56
7 204
8 884
9 4143
10 21164
11 115976
12 678631
13 4213598
14 27644642
15 190899340
16 1382959429
17 10480142148
18 82864874000
19 682076806160
20 5832742226226
21 51724158235578
22 474869816272728
23 4506715738447324