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A154963 as a simple table

na(n)
12
217
323
441
561
671
783
8127
9227
10337
11353
12499
13503
14571
15727
16887
17911
18937
19971
201061
211427
221579
231663
241693
251709
261871
271877
281907
291949
301973
312017
322063
332081
342239
352339
362393
372467
382713
392797
402939
412999
423181
433271
443463
453643
463659
473677

[2,17,23,41,61,71,83,127,227,337,353,499,503,571,
 727,887,911,937,971,1061,1427,1579,1663,1693,1709,
 1871,1877,1907,1949,1973,2017,2063,2081,2239,2339,
 2393,2467,2713,2797,2939,2999,3181,3271,3463,3643,
 3659,3677]