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A033680 as a simple table

na(n)
11
21
33
411
513
629
739
849
983
10141
11247
12273
13291
14347
15373
16401
17441
18567
19571
20651
21903
22957
231001
241129
251401
261457
271467
281561
291889
302083
312169
322523
332717
342743
353447
363509
373711
384087
394899
404983
415087
425151
435263
445429
455551
466017
477389
487839

[1,1,3,11,13,29,39,49,83,141,247,273,291,347,373,
 401,441,567,571,651,903,957,1001,1129,1401,1457,
 1467,1561,1889,2083,2169,2523,2717,2743,3447,3509,
 3711,4087,4899,4983,5087,5151,5263,5429,5551,6017,
 7389,7839]