# A268121 (b-file synthesized from sequence entry)
1 1
2 2
3 5
4 15
5 111
6 1687
7 23522
8 253472
9 2290853
10 18470974
11 140294987
12 1065068657
13 8679331941
14 80007298457
15 822840131716
16 8854238260868
17 94125422868108
18 961136731712639
19 9379785431020093