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A166651 as a simple table

na(n)
11
23
35
49
59
615
713
827
925
1027
1121
1245
1325
1439
1545
1681
1733
1875
1937
2081
2165
2263
2345
24135
2581
2675
27125
28117
2957
30135
3161
32243
33105
3499
35117
36225
3773
38111
39125
40243
4181
42195
4385
44189
45225
46135
4793
48405
49169
50243

[1,3,5,9,9,15,13,27,25,27,21,45,25,39,45,81,33,75,
 37,81,65,63,45,135,81,75,125,117,57,135,61,243,
 105,99,117,225,73,111,125,243,81,195,85,189,225,
 135,93,405,169,243]