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A114271 as a simple table

na(n)
13
29
315
421
533
651
757
881
987
10111
11117
12123
13129
14135
15141
16147
17153
18177
19189
20213
21219
22255
23279
24285
25315
26321
27327
28345
29351
30363
31399
32417
33465
34471
35477
36483
37495
38549
39579
40585
41627
42657
43663
44669
45723
46735
47741
48747
49759
50771
51783
52789
53807
54825

[3,9,15,21,33,51,57,81,87,111,117,123,129,135,141,
 147,153,177,189,213,219,255,279,285,315,321,327,
 345,351,363,399,417,465,471,477,483,495,549,579,
 585,627,657,663,669,723,735,741,747,759,771,783,
 789,807,825]