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A072448 as a simple table

na(n)
19
21
316
41
525
681
74
836
925
109
1125
1264
1381
1449
1581
169
174
189
1964
2016
2136
224
2336
2416
259
269
2764
289
294
3049
3181
3225
330
344
3564
3664
3716
381
3981
4049
411
4236
4381
449
4581
4681
479
4849
4925
501
510
5225
5364
544
550
5681
5749
5816
5981
6016
6116
6225
6381
644
659
660
6749
6864
691
7036
7116
720
7336
744
7564
7636
774
780
7964
8081

[9,1,16,1,25,81,4,36,25,9,25,64,81,49,81,9,4,9,64,
 16,36,4,36,16,9,9,64,9,4,49,81,25,0,4,64,64,16,1,
 81,49,1,36,81,9,81,81,9,49,25,1,0,25,64,4,0,81,49,
 16,81,16,16,25,81,4,9,0,49,64,1,36,16,0,36,4,64,
 36,4,0,64,81]