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A099863 as a simple table

na(n)
13
25
37
417
511
613
731
841
919
1053
1123
1297
1359
1429
1547
1689
17163
1837
19103
20113
2143
22109
23127
2473
25179
26149
27311
28193
29283
3061
3179
32313
3367
34197
3571
36337
37331
38461
39223
40233
4183
42373
43599
44673
45251
46349
47239
48281
49227
50101
51167
52433
53107
54173
55191
56137
57499
58853
59503
60257
61347
62509
63271
64761
65131
66389
67647
68401
69139
70397
711439
72937
73659
74181
75151
761249
77443
78157
79431
801753
81547
82421
83487
84241
85683
862029
871279
88457
89307
90277
91439
92577
932203
94701
95463
96953
971987
981093
99199
100977

[3,5,7,17,11,13,31,41,19,53,23,97,59,29,47,89,163,
 37,103,113,43,109,127,73,179,149,311,193,283,61,
 79,313,67,197,71,337,331,461,223,233,83,373,599,
 673,251,349,239,281,227,101,167,433,107,173,191,
 137,499,853,503,257,347,509,271,761,131,389,647,
 401,139,397,1439,937,659,181,151,1249,443,157,431,
 1753,547,421,487,241,683,2029,1279,457,307,277,
 439,577,2203,701,463,953,1987,1093,199,977]