# A197459 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 4
5 12
6 27
7 78
8 208
9 635
10 1859
11 5726
12 17526
13 54620
14 170479
15 536714
16 1694567
17 5376764
18 17110286
19 54631302
20 174879997
21 561229678
22 1805022806