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A107171 as a simple table

na(n)
15
213
397
4137
5193
6197
7457
8593
9613
10617
11733
12877
131097
141237
151373
161553
171753
181877
191913
201997
212273
222293
232333
242377
252477
262593
272917
282953
293037
303373
313517
323593
333673
343677
353697
363733
373853
384217
394337
404457
414513
424517
434673

[5,13,97,137,193,197,457,593,613,617,733,877,1097,
 1237,1373,1553,1753,1877,1913,1997,2273,2293,2333,
 2377,2477,2593,2917,2953,3037,3373,3517,3593,3673,
 3677,3697,3733,3853,4217,4337,4457,4513,4517,4673]