# A228063 (b-file synthesized from sequence entry)
1 4
2 21
3 143
4 1063
5 8371
6 68785
7 583436
8 5069633
9 44876757
10 403025174
11 3660702622
12 33550877248
13 309726969451
14 2876065468123
15 26835315229835
16 251389798269317
17 2362887262236150
18 22272676889496853
19 210455460654786509
20 1992806263723883464