# A225806 (b-file synthesized from sequence entry)
1 2
2 7
3 17
4 71
5 6607
6 15313
7 91801
8 141689
9 443777
10 858463
11 1353593
12 2345479
13 726919199
14 2458927937
15 7425764663
16 37193744801
17 329683117297
18 973676004031
19 1294734832753
20 3825780992497
21 10360880429177