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A173828 as a simple table

na(n)
17
243
347
467
5149
6163
7167
8337
9353
10487
11587
12617
13787
14911
15947
161367
171777
181783
192333
202347
212503
222927
232953
242963
253023
263607
273613
283637
293643
303697
313709
323847
334363
344397
354423
364463
374483
384903
395273
406113
416143
426197
437103
447187
457193
468117

[7,43,47,67,149,163,167,337,353,487,587,617,787,
 911,947,1367,1777,1783,2333,2347,2503,2927,2953,
 2963,3023,3607,3613,3637,3643,3697,3709,3847,4363,
 4397,4423,4463,4483,4903,5273,6113,6143,6197,7103,
 7187,7193,8117]