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A046580 as a simple table

na(n)
11
21
35
41
59
61
719
813
91
108
1117
121
1335
1449
1521
161
17119
1835
1925
201
21259
22189
2395
2429
251
26112
2771
2831
2933
301
31483
32183
33102
34157
3537
361
37849
38285
39565
4097
4141
421
431815
441419
451705
46759
47235
4845
491
501617
514543
52616
53497
5470
5549
561
573432
5811011
597007
601729
61637

[1,1,5,1,9,1,19,13,1,8,17,1,35,49,21,1,119,35,25,
 1,259,189,95,29,1,112,71,31,33,1,483,183,102,157,
 37,1,849,285,565,97,41,1,1815,1419,1705,759,235,
 45,1,1617,4543,616,497,70,49,1,3432,11011,7007,
 1729,637]