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A154591 as a simple table

na(n)
127
251
379
4111
5147
6187
7231
8279
9331
10387
11447
12511
13579
14651
15727
16807
17891
18979
191071
201167
211267
221371
231479
241591
251707
261827
271951
282079
292211
302347
312487
322631
332779
342931
353087
363247
373411
383579
393751
403927
414107
424291
434479
444671
454867
465067
475271

[27,51,79,111,147,187,231,279,331,387,447,511,579,
 651,727,807,891,979,1071,1167,1267,1371,1479,1591,
 1707,1827,1951,2079,2211,2347,2487,2631,2779,2931,
 3087,3247,3411,3579,3751,3927,4107,4291,4479,4671,
 4867,5067,5271]