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A337295 as a simple table

na(n)
115
251
385
4159
5190
6249
7303
8471
9489
10639
11679
12763
13765
14771
15799
16843
17893
18917
19951
20995
211010
221017
231023
241167
251203
261285
271467
281501
291615
301630
311641
321707
331742
341773
351788
361929
371939
381970
392015
402167
412319
422367
432493
442787
452931
462975
473033
483055

[15,51,85,159,190,249,303,471,489,639,679,763,765,
 771,799,843,893,917,951,995,1010,1017,1023,1167,
 1203,1285,1467,1501,1615,1630,1641,1707,1742,1773,
 1788,1929,1939,1970,2015,2167,2319,2367,2493,2787,
 2931,2975,3033,3055]