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A090504 as a simple table

na(n)
11
23
37
421
527
639
7101
8169
9239
10247
11263
12291
13381
14391
15447
16489
17509
18531
19619
20699
21821
22981
231011
241267
251367
261483
271691
281777
292241
302351
312403
322859
334153
344793
355299
365513
375553
385673
395797
406813
417491
427721
437861
448073
458363
468409
479781
489879

[1,3,7,21,27,39,101,169,239,247,263,291,381,391,
 447,489,509,531,619,699,821,981,1011,1267,1367,
 1483,1691,1777,2241,2351,2403,2859,4153,4793,5299,
 5513,5553,5673,5797,6813,7491,7721,7861,8073,8363,
 8409,9781,9879]