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A137474 as a simple table

na(n)
13
27
313
473
597
6157
7523
81483
91993
102521
113967
125641
136607
147717
158761
169397
1711821
1811971
1912241
2012613
2113597
2214083
2315511
2416231
2516411
2617203
2717293
2819801
2923143
3023167
3123857
3228123
3329173
3429881
3530391
3631477
3731723
3832323

[3,7,13,73,97,157,523,1483,1993,2521,3967,5641,
 6607,7717,8761,9397,11821,11971,12241,12613,13597,
 14083,15511,16231,16411,17203,17293,19801,23143,
 23167,23857,28123,29173,29881,30391,31477,31723,
 32323]