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A260179 as a simple table

na(n)
117
223
371
4149
5173
6233
7331
8359
9389
10419
11431
12503
13677
14727
15839
16853
17937
18971
191019
201201
211229
221277
231327
242213
252221
262237
272593
282689
292797
302999
313019
323167
333221
343253
353821
363823
374027
384111
394201
404219
414231
424801
435147
445309
455407
465437

[17,23,71,149,173,233,331,359,389,419,431,503,677,
 727,839,853,937,971,1019,1201,1229,1277,1327,2213,
 2221,2237,2593,2689,2797,2999,3019,3167,3221,3253,
 3821,3823,4027,4111,4201,4219,4231,4801,5147,5309,
 5407,5437]