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A278049 as a simple table

na(n)
12
25
311
417
529
635
753
865
983
1095
11125
12137
13173
14191
15215
16239
17287
18305
19359
20383
21419
22449
23515
24539
25599
26635
27689
28725
29809
30833
31923
32971
331031
341079
351151
361187
371295
381349
391421
401469
411589
421625
431751
441811
451883
461949
472087
482135
492261
502321
512417
522489
532645
542699
552819
562891
572999

[2,5,11,17,29,35,53,65,83,95,125,137,173,191,215,
 239,287,305,359,383,419,449,515,539,599,635,689,
 725,809,833,923,971,1031,1079,1151,1187,1295,1349,
 1421,1469,1589,1625,1751,1811,1883,1949,2087,2135,
 2261,2321,2417,2489,2645,2699,2819,2891,2999]