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A139914 as a simple table

na(n)
171
279
3151
4191
5239
6359
7431
8599
9631
10751
11911
12919
13991
141031
151439
161471
171759
181831
191871
201999
212039
222111
232311
242591
252671
262711
272879
283119
293271
303319
313511
323719
334111
344159
354271
364391
374519
384799
394831
404951
414999
425119

[71,79,151,191,239,359,431,599,631,751,911,919,
 991,1031,1439,1471,1759,1831,1871,1999,2039,2111,
 2311,2591,2671,2711,2879,3119,3271,3319,3511,3719,
 4111,4159,4271,4391,4519,4799,4831,4951,4999,5119]