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A049753 as a simple table

na(n)
02
15
29
313
423
531
645
757
871
989
10111
11127
12151
13175
14203
15231
16267
17295
18327
19367
20397
21443
22487
23535
24577
25625
26677
27723
28781
29831
30883
31951
321005
331071
341139
351205
361279
371349
381421
391491
401571
411649
421729
431811
441889
451985
462069
472153
482243
492337
502431

[2,5,9,13,23,31,45,57,71,89,111,127,151,175,203,
 231,267,295,327,367,397,443,487,535,577,625,677,
 723,781,831,883,951,1005,1071,1139,1205,1279,1349,
 1421,1491,1571,1649,1729,1811,1889,1985,2069,2153,
 2243,2337,2431]