# A155224 (b-file synthesized from sequence entry)
2 1
3 4
4 13
5 28
6 111
7 977
8 7280
9 55365
10 714096
11 13471597
12 269297226
13 6772718447
14 245090678582
15 11547321954885
16 661077498433706
17 49292298477002834
18 4904773608293842400