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A294994 as a simple table

na(n)
12
23
35
47
511
613
729
817
919
1023
1131
1247
1337
1441
1543
1659
1761
1853
19101
2071
2167
2273
2379
24103
2597
26107
27109
28127
29191
30151
31131
32137
33139
34163
35167
36173
37157
38149
39181
40179
41211
4283
4389
44113
45241
46193
47197
48199
49223
50239
51227
52229
53233
54251
55379
56283
57271
58263
59257
60269
61277
62281
63313
64307
65311
66293

[2,3,5,7,11,13,29,17,19,23,31,47,37,41,43,59,61,
 53,101,71,67,73,79,103,97,107,109,127,191,151,131,
 137,139,163,167,173,157,149,181,179,211,83,89,113,
 241,193,197,199,223,239,227,229,233,251,379,283,
 271,263,257,269,277,281,313,307,311,293]