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A185275 as a simple table

na(n)
01
11
23
33
415
515
6105
7105
8945
9945
1010395
113465
1245045
1345045
14675675
15675675
1611486475
1711486475
18218243025
1943648605
20916620705
21916620705
2221082276215
232342475135
2458561878375
2558561878375
261581170716125
27225881530875
286550564395375
296550564395375

[1,1,3,3,15,15,105,105,945,945,10395,3465,45045,
 45045,675675,675675,11486475,11486475,218243025,
 43648605,916620705,916620705,21082276215,
 2342475135,58561878375,58561878375,1581170716125,
 225881530875,6550564395375,6550564395375]