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A298032 as a simple table

na(n)
01
15
215
331
461
597
6145
7199
8265
9337
10421
11511
12613
13721
14841
15967
161105
171249
181405
191567
201741
211921
222113
232311
242521
252737
262965
273199
283445
293697
303961
314231
324513
334801
345101
355407
365725
376049
386385
396727
407081
417441
427813
438191
448581
458977
469385
479799
4810225
4910657
5011101
5111551

[1,5,15,31,61,97,145,199,265,337,421,511,613,721,
 841,967,1105,1249,1405,1567,1741,1921,2113,2311,
 2521,2737,2965,3199,3445,3697,3961,4231,4513,4801,
 5101,5407,5725,6049,6385,6727,7081,7441,7813,8191,
 8581,8977,9385,9799,10225,10657,11101,11551]