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A195689 as a simple table

na(n)
15
217
353
43545
58369
6823633
7499025
8669937733
9722651597
1035034942905
11173113684537
121860490554949
1321906189996125
142320160748906089
151347255903779016125
1649174444344033218405
17436006592777392918253129
1831471103940926430492910889

[5,17,53,3545,8369,823633,499025,669937733,
 722651597,35034942905,173113684537,1860490554949,
 21906189996125,2320160748906089,
 1347255903779016125,49174444344033218405,
 436006592777392918253129,
 31471103940926430492910889]