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A253052 as a simple table

na(n)
19
221
333
493
5111
6129
7177
8213
9237
10267
11309
12321
13381
14411
15519
16579
17597
18633
19687
20699
21723
22753
23789
24831
25879
26921
27951
281047
291149
301257
311299
321317
331347
341401
351461
361641
371713
381731
391779
401797
411821
421983
432031
442049
452103
462181
472427
482469

[9,21,33,93,111,129,177,213,237,267,309,321,381,
 411,519,579,597,633,687,699,723,753,789,831,879,
 921,951,1047,1149,1257,1299,1317,1347,1401,1461,
 1641,1713,1731,1779,1797,1821,1983,2031,2049,2103,
 2181,2427,2469]