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A162950 as a simple table

na(n)
12
23
35
47
513
617
719
823
929
1031
1137
1243
1353
1459
1561
1671
1773
1879
1989
20113
21137
22179
23181
24191
25193
26199
27233
28269
29281
30311
31353
32367
33397
34463
35487
36509
37557
38571
39593
40647
41661
42677
43709
44733
45757
46797
47829
48839
49929
501117
511277
521307
531433
541873
551949

[2,3,5,7,13,17,19,23,29,31,37,43,53,59,61,71,73,
 79,89,113,137,179,181,191,193,199,233,269,281,311,
 353,367,397,463,487,509,557,571,593,647,661,677,
 709,733,757,797,829,839,929,1117,1277,1307,1433,
 1873,1949]