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A355895 as a simple table

na(n)
11
23
311
47
517
641
737
883
979
10109
11241
12239
13499
14491
151117
161109
172539
182531
195623
205591
2111471
2211467
2323369
2423357

[1,3,11,7,17,41,37,83,79,109,241,239,499,491,1117,
 1109,2539,2531,5623,5591,11471,11467,23369,23357]