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A039949 as a simple table

na(n)
117
247
3107
4137
5167
6197
7227
8257
9317
10347
11467
12557
13587
14617
15647
16677
17797
18827
19857
20887
21947
22977
231097
241187
251217
261277
271307
281367
291427
301487
311607
321637
331667
341697
351787
361847
371877
381907
391997
402027
412087
422207
432237
442267
452297
462357
472417

[17,47,107,137,167,197,227,257,317,347,467,557,
 587,617,647,677,797,827,857,887,947,977,1097,1187,
 1217,1277,1307,1367,1427,1487,1607,1637,1667,1697,
 1787,1847,1877,1907,1997,2027,2087,2207,2237,2267,
 2297,2357,2417]