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A272680 as a simple table

na(n)
00
11
24
325
44
581
625
7121
816
99
1081
11361
1225
13441
14225
15121
1616
171089
1836
19625
2081
21169
22361
231521
2449
2525
26841
27441
28225
293721
30121
312025
3264
33529
341089
354489
3636
372401
381225
39625
4081
415329
42169
432809
4411449
45361
465929
471521
486241
4949
50100
516561
52841
536889

[0,1,4,25,4,81,25,121,16,9,81,361,25,441,225,121,
 16,1089,36,625,81,169,361,1521,49,25,841,441,225,
 3721,121,2025,64,529,1089,4489,36,2401,1225,625,
 81,5329,169,2809,11449,361,5929,1521,6241,49,100,
 6561,841,6889]