# A146630 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 9
10 19
11 33
12 61
13 181
14 701
15 2981
16 12267
17 47389
18 212787
19 1164819
20 7692083
21 54594417
22 416739483
23 3346928919