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A253203 as a simple table

na(n)
19
24
39
416
59
616
79
816
925
1016
1125
1216
1325
1416
1525
1636
1725
1836
1925
2036
2125
2236
2325
2436
2549
2636
2749
2836
2949
3036
3149
3236
3349
3436
3549
3664
3749
3864
3949
4064
4149
4264
4349
4464
4549
4664
4749
4864
4981
5064
5181
5264
5381
5464
5581
5664
5781
5864
5981
6064
6181
6264
6381
64100
6581
66100
6781
68100
6981
70100
7181
72100
7381
74100
7581
76100
7781
78100
7981
80100

[9,4,9,16,9,16,9,16,25,16,25,16,25,16,25,36,25,36,
 25,36,25,36,25,36,49,36,49,36,49,36,49,36,49,36,
 49,64,49,64,49,64,49,64,49,64,49,64,49,64,81,64,
 81,64,81,64,81,64,81,64,81,64,81,64,81,100,81,100,
 81,100,81,100,81,100,81,100,81,100,81,100,81,100]