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A083996 as a simple table

na(n)
11
23
39
43
511
61
723
849
921
103
1117
129
1313
143
1547
1619
1741
1843
193
2051
21371
22183
233
2421
25103
2653
2733
2833
2991
3041
3199
32433
33443
3493
35111
36501
3773
3811
39139
40177
41171
42429
43521
44333
45417
461
47341
48213
49253
50171
51387
52171
53779
54463
55687
56861
571131
5839
59539
60231
611513
62263
63369

[1,3,9,3,11,1,23,49,21,3,17,9,13,3,47,19,41,43,3,
 51,371,183,3,21,103,53,33,33,91,41,99,433,443,93,
 111,501,73,11,139,177,171,429,521,333,417,1,341,
 213,253,171,387,171,779,463,687,861,1131,39,539,
 231,1513,263,369]