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A015965 as a simple table

na(n)
11
23
35
49
515
625
727
845
975
1081
11125
12135
13171
14183
15225
16243
17355
18375
19405
20505
21513
22549
23625
24675
25729
26855
27915
281065
291125
301215
311515
321539
331647
341775
351875
362025
372187
382525
392565
402745
413125
423195
433249
443375
453645
464275
474545

[1,3,5,9,15,25,27,45,75,81,125,135,171,183,225,
 243,355,375,405,505,513,549,625,675,729,855,915,
 1065,1125,1215,1515,1539,1647,1775,1875,2025,2187,
 2525,2565,2745,3125,3195,3249,3375,3645,4275,4545]