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A344073 as a simple table

na(n)
13
215
323
439
547
687
771
895
9199
10119
11167
12327
13191
14215
15239
16407
17383
18335
19311
20776
21431
22591
23647
24695
25479
26551
27983
28831
29887
30671
31719
32791
33839
341079
351031
36959
371487
381199
391439
401271
411151
421959
431847
441391
451319
462615
473023
481751
491511
501799

[3,15,23,39,47,87,71,95,199,119,167,327,191,215,
 239,407,383,335,311,776,431,591,647,695,479,551,
 983,831,887,671,719,791,839,1079,1031,959,1487,
 1199,1439,1271,1151,1959,1847,1391,1319,2615,3023,
 1751,1511,1799]