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A361680 as a simple table

na(n)
13
27
311
431
547
667
783
8163
9179
10193
11263
12367
13389
14499
15563
16571
17887
18967
191229
201087
211367
221873
231289
242647
251907
262083
271979
282557
292267
303697
312909
323121
333761
344507
354373
364723
375279
385857
396359
406793
417727
428167
437853
446823
456779
468059
479479
4810567

[3,7,11,31,47,67,83,163,179,193,263,367,389,499,
 563,571,887,967,1229,1087,1367,1873,1289,2647,
 1907,2083,1979,2557,2267,3697,2909,3121,3761,4507,
 4373,4723,5279,5857,6359,6793,7727,8167,7853,6823,
 6779,8059,9479,10567]