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A028907 as a simple table

na(n)
00
11
24
39
416
525
636
749
846
918
101
11112
12144
13169
14169
15225
16256
17289
18234
19136
204
21144
22448
23259
24567
25256
26667
27279
28478
29148
309
31169
32124
33189
341156
351225
361269
371369
381444
391125
4016
411168
421467
431489
441369
45225
461126
47229
48234
49124
5025
51126

[0,1,4,9,16,25,36,49,46,18,1,112,144,169,169,225,
 256,289,234,136,4,144,448,259,567,256,667,279,478,
 148,9,169,124,189,1156,1225,1269,1369,1444,1125,
 16,1168,1467,1489,1369,225,1126,229,234,124,25,
 126]