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A125228 as a simple table

na(n)
11
27
321
439
565
693
7135
8179
9227
10285
11349
12415
13495
14573
15663
16759
17859
18963
191071
201199
211325
221457
231591
241735
251891
262049
272207
282383
292557
302735
312929
323123
333327
343529
353739
363955
374191
384427
394665
404901
415159
425413
435681
445951
456231
466515
476799

[1,7,21,39,65,93,135,179,227,285,349,415,495,573,
 663,759,859,963,1071,1199,1325,1457,1591,1735,
 1891,2049,2207,2383,2557,2735,2929,3123,3327,3529,
 3739,3955,4191,4427,4665,4901,5159,5413,5681,5951,
 6231,6515,6799]