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A255304 as a simple table

na(n)
01
15
25
315
45
525
615
751
85
925
1025
1175
1215
1375
1451
15153
165
1725
1825
1975
2025
21125
2275
23255
2415
2575
2675
27225
2851
29255
30153
31477
325
3325
3425
3575
3625
37125
3875
39255
4025
41125
42125
43375
4475
45375
46255
47765
4815
4975
5075
51225
5275
53375
54225
55765
5651
57255
58255
59765
60153

[1,5,5,15,5,25,15,51,5,25,25,75,15,75,51,153,5,25,
 25,75,25,125,75,255,15,75,75,225,51,255,153,477,5,
 25,25,75,25,125,75,255,25,125,125,375,75,375,255,
 765,15,75,75,225,75,375,225,765,51,255,255,765,
 153]