# A028400 (b-file synthesized from sequence entry)
0 4
1 9
2 25
3 81
4 289
5 1089
6 4225
7 16641
8 66049
9 263169
10 1050625
11 4198401
12 16785409
13 67125249
14 268468225
15 1073807361
16 4295098369
17 17180131329
18 68720001025
19 274878955521
20 1099513724929
21 4398050705409
22 17592194433025