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A301685 as a simple table

na(n)
01
15
213
325
443
565
693
7127
8163
9205
10253
11303
12359
13421
14485
15555
16631
17709
18793
19883
20975
211073
221177
231283
241395
251513
261633
271759
281891
292025
302165
312311
322459
332613
342773
352935
363103
373277
383453
393635
403823
414013
424209
434411
444615
454825
465041
475259
485483
495713
505945
516183
526427
536673
546925
557183
567443
577709
587981

[1,5,13,25,43,65,93,127,163,205,253,303,359,421,
 485,555,631,709,793,883,975,1073,1177,1283,1395,
 1513,1633,1759,1891,2025,2165,2311,2459,2613,2773,
 2935,3103,3277,3453,3635,3823,4013,4209,4411,4615,
 4825,5041,5259,5483,5713,5945,6183,6427,6673,6925,
 7183,7443,7709,7981]