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A065917 as a simple table

na(n)
11
23
39
415
545
675
7105
8315
9525
10735
11945
121155
133465
145775
158085
1610395
1712705
1815015
1945045
2075075
21105105
22135135
23165165
24195195
25225225
26255255
27765765
281276275
291786785
302297295
312807805
323318315
333828825
344339335
354849845

[1,3,9,15,45,75,105,315,525,735,945,1155,3465,
 5775,8085,10395,12705,15015,45045,75075,105105,
 135135,165165,195195,225225,255255,765765,1276275,
 1786785,2297295,2807805,3318315,3828825,4339335,
 4849845]