# A209109 (b-file synthesized from sequence entry)
1 1
2 3
3 5
4 22
5 63
6 238
7 865
8 3417
9 13607
10 55669
11 230581
12 968550
13 4108547
14 17589348
15 75872175
16 329480644
17 1439151627
18 6318822750
19 27872030921
20 123452835089