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A065734 as a simple table

na(n)
11
21
34
44
54
69
74
89
99
1016
119
1225
139
1416
1516
1625
1716
1836
1916
2036
2125
2236
2316
2449
2525
2636
2736
2849
2925
3064
3125
3249
3336
3449
3536
3681
3736
3849
3949
4081
4136
4281
4336
4481
4564
4664
4736
48121
4949
5081
5164
5281
5349
54100
5564
56100
5764
5881
5949
60144
6149
6281
63100
64121
6581
66144
6764
68121
6981
70144

[1,1,4,4,4,9,4,9,9,16,9,25,9,16,16,25,16,36,16,36,
 25,36,16,49,25,36,36,49,25,64,25,49,36,49,36,81,
 36,49,49,81,36,81,36,81,64,64,36,121,49,81,64,81,
 49,100,64,100,64,81,49,144,49,81,100,121,81,144,
 64,121,81,144]