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A048761 as a simple table

na(n)
00
11
24
34
44
59
69
79
89
99
1016
1116
1216
1316
1416
1516
1616
1725
1825
1925
2025
2125
2225
2325
2425
2525
2636
2736
2836
2936
3036
3136
3236
3336
3436
3536
3636
3749
3849
3949
4049
4149
4249
4349
4449
4549
4649
4749
4849
4949
5064
5164
5264
5364
5464
5564
5664
5764
5864
5964
6064
6164
6264
6364
6464
6581
6681
6781
6881
6981
7081
7181
7281
7381
7481

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