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A298039 as a simple table

na(n)
01
17
231
349
497
5127
6199
7241
8337
9391
10511
11577
12721
13799
14967
151057
161249
171351
181567
191681
201921
212047
222311
232449
242737
252887
263199
273361
283697
293871
304231
314417
324801
334999
345407
355617
366049
376271
386727
396961
407441
417687
428191
438449
448977
459247
469799
4710081
4810657
4910951
5011551
5111857
5212481

[1,7,31,49,97,127,199,241,337,391,511,577,721,799,
 967,1057,1249,1351,1567,1681,1921,2047,2311,2449,
 2737,2887,3199,3361,3697,3871,4231,4417,4801,4999,
 5407,5617,6049,6271,6727,6961,7441,7687,8191,8449,
 8977,9247,9799,10081,10657,10951,11551,11857,
 12481]