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A089070 as a simple table

na(n)
23
35
411
579
6109
7131
8211
9223
10229
11241
12271
13277
14347
15353
16379
17443
18463
19509
20523
21557
22571
23577
24631
25727
26827
27877
28971
291051
301103
311229
321237
331259
341303
351409
361439
371447
381493
391531
401669
411723
421747
431801
441847
451871
461979
471987
482081
492089

[3,5,11,79,109,131,211,223,229,241,271,277,347,
 353,379,443,463,509,523,557,571,577,631,727,827,
 877,971,1051,1103,1229,1237,1259,1303,1409,1439,
 1447,1493,1531,1669,1723,1747,1801,1847,1871,1979,
 1987,2081,2089]