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A164802 as a simple table

na(n)
19
21
35
415
530
619
729
821
925
1031
1135
1245
1355
14121
15125
16131
17135
18145
19155
20231
21235
22245
23255
24355
25445
26455

[9,1,5,15,30,19,29,21,25,31,35,45,55,121,125,131,
 135,145,155,231,235,245,255,355,445,455]