login

A028400 as a simple table

na(n)
04
19
225
381
4289
51089
64225
716641
866049
9263169
101050625
114198401
1216785409
1367125249
14268468225
151073807361
164295098369
1717180131329
1868720001025
19274878955521
201099513724929
214398050705409
2217592194433025

[4,9,25,81,289,1089,4225,16641,66049,263169,
 1050625,4198401,16785409,67125249,268468225,
 1073807361,4295098369,17180131329,68720001025,
 274878955521,1099513724929,4398050705409,
 17592194433025]