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A213671 as a simple table

na(n)
11
21
31
47
511
61
711
829
937
1023
117
1267
1379
1423
1553
16121
17137
1877
1943
20191
21211
2229
23127
24277
25301
26163
2711
28379
29407
30109
31233
32497
33529
34281
35149
36631
37667
3811
39371
40781
41821
42431
43113
44947
45991
46259
47541
481129
491177
50613
51319
521327
531379
54179

[1,1,1,7,11,1,11,29,37,23,7,67,79,23,53,121,137,
 77,43,191,211,29,127,277,301,163,11,379,407,109,
 233,497,529,281,149,631,667,11,371,781,821,431,
 113,947,991,259,541,1129,1177,613,319,1327,1379,
 179]