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A269840 as a simple table

na(n)
117
241
359
4107
5137
6179
7227
8281
9347
10419
11521
12569
13617
14641
15659
16809
17827
18857
19881
201019
211049
221091
231289
241427
251451
261481
271619
281667
291697
301721
311787
321931
332027
342081
352129
362267
372339
382657
392729
402801
412969
423251
433257
443299
453329
463371
473467
483539

[17,41,59,107,137,179,227,281,347,419,521,569,617,
 641,659,809,827,857,881,1019,1049,1091,1289,1427,
 1451,1481,1619,1667,1697,1721,1787,1931,2027,2081,
 2129,2267,2339,2657,2729,2801,2969,3251,3257,3299,
 3329,3371,3467,3539]