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A103578 as a simple table

na(n)
11
23
35
49
515
615
721
821
925
1027
1145
1245
1363
1463
1563
1663
1775
1875
1981
2081
21105
22105
23105
24105
25135
26135
27135
28135
29135
30135
31189
32189
33225
34225
35225
36225
37243
38243
39243
40243
41315
42315
43315
44315
45315
46315
47315
48315
49405
50405
51405
52405
53405
54405
55405
56405
57405

[1,3,5,9,15,15,21,21,25,27,45,45,63,63,63,63,75,
 75,81,81,105,105,105,105,135,135,135,135,135,135,
 189,189,225,225,225,225,243,243,243,243,315,315,
 315,315,315,315,315,315,405,405,405,405,405,405,
 405,405,405]