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A298019 as a simple table

na(n)
01
17
219
331
455
591
6115
7157
8217
9253
10313
11397
12445
13523
14631
15691
16787
17919
18991
191105
201261
211345
221477
231657
241753
251903
262107
272215
282383
292611
302731
312917
323169
333301
343505
353781
363925
374147
384447
394603
404843
415167
425335
435593
445941
456121
466397
476769
486961
497255
507651
517855
528167
538587

[1,7,19,31,55,91,115,157,217,253,313,397,445,523,
 631,691,787,919,991,1105,1261,1345,1477,1657,1753,
 1903,2107,2215,2383,2611,2731,2917,3169,3301,3505,
 3781,3925,4147,4447,4603,4843,5167,5335,5593,5941,
 6121,6397,6769,6961,7255,7651,7855,8167,8587]