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A175367 as a simple table

na(n)
01
17
227
357
493
5125
6251
7275
8341
9493
10613
11637
12847
13991
141095
151317
161521
171713
181785
192079
202279
212555
222747
232969
243329
253593
263793
274051
284507
294747
305155
315419
325749
336333
346693
356957
367317
377875
388211
398751
409191
419431
4210133
4310517
4411045

[1,7,27,57,93,125,251,275,341,493,613,637,847,991,
 1095,1317,1521,1713,1785,2079,2279,2555,2747,2969,
 3329,3593,3793,4051,4507,4747,5155,5419,5749,6333,
 6693,6957,7317,7875,8211,8751,9191,9431,10133,
 10517,11045]