# A094206 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 3
6 5
7 9
8 25
9 66
10 158
11 424
12 1048
13 2445
14 5736
15 17069
16 88674
17 241698
18 648786
19 1600339
20 5379356