# A220236 (b-file synthesized from sequence entry)
1 9
2 51
3 231
4 975
5 3999
6 16191
7 65151
8 261375
9 1047039
10 4191231
11 16771071
12 67096575
13 268410879
14 1073692671
15 4294868991
16 17179672575
17 68719083519
18 274877120511
19 1099510054911
20 4398043365375
21 17592179752959
22 70368731594751
23 281474951544831
24 1125899856510975