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A161753 as a simple table

na(n)
10
21
316
436
564
681
7100
8144
9196
10225
11256
12324
13400
14441
15484
16576
17625
18676
19729
20784
21900
221024
231089
241156
251225
261296
271444
281521
291600
301764
311936
322025
332116
342304
352401
362500
372601
382704
392916
403025
413136
423249
433364
443600
453844
463969
474096

[0,1,16,36,64,81,100,144,196,225,256,324,400,441,
 484,576,625,676,729,784,900,1024,1089,1156,1225,
 1296,1444,1521,1600,1764,1936,2025,2116,2304,2401,
 2500,2601,2704,2916,3025,3136,3249,3364,3600,3844,
 3969,4096]