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A304163 as a simple table

na(n)
17
231
373
4133
5211
6307
7421
8553
9703
10871
111057
121261
131483
141723
151981
162257
172551
182863
193193
203541
213907
224291
234693
245113
255551
266007
276481
286973
297483
308011
318557
329121
339703
3410303
3510921
3611557
3712211
3812883
3913573
4014281

[7,31,73,133,211,307,421,553,703,871,1057,1261,
 1483,1723,1981,2257,2551,2863,3193,3541,3907,4291,
 4693,5113,5551,6007,6481,6973,7483,8011,8557,9121,
 9703,10303,10921,11557,12211,12883,13573,14281]