# A304520 (b-file synthesized from sequence entry)
1 7
2 28
3 158
4 1087
5 8420
6 69034
7 586400
8 5097725
9 45088364
10 404211372
11 3663020374
12 33489909119
13 308457775318
14 2858876653517
15 26639629964435
16 249393774431034
17 2344318827962046
18 22116397163892861
19 209317713089716899
20 1986761935587919881
21 18906449884370307192