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A207982 as a simple table

na(n)
12
23
35
411
511
611
723
823
923
1031
1143
1243
1343
1443
1559
1659
1759
1859
19107
20149
21151
22151
23151
24151
25163
26163
27163
28163
29163
30163
31163
32163
33163
34277
35277
36277
37277
38401
39401
40457
41457
42457
43457
44457
45457
46457
47479
48479
49479
50479
51479
52479
53479
54479
55479
56479

[2,3,5,11,11,11,23,23,23,31,43,43,43,43,59,59,59,
 59,107,149,151,151,151,151,163,163,163,163,163,
 163,163,163,163,277,277,277,277,401,401,457,457,
 457,457,457,457,457,479,479,479,479,479,479,479,
 479,479,479]