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A067271 as a simple table

na(n)
11
24
35
48
59
616
725
840
941
1056
1165
1280
1381
1496
15176
16225
17400
18401
19576
20625
21800
22801
23976
241376
252625
264000
274001
285376
296625
308000
318001
329376
3310625
3429376
3540000
3640001
3750625
3869376
3980000
4080001
4190625

[1,4,5,8,9,16,25,40,41,56,65,80,81,96,176,225,400,
 401,576,625,800,801,976,1376,2625,4000,4001,5376,
 6625,8000,8001,9376,10625,29376,40000,40001,50625,
 69376,80000,80001,90625]