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A156298 as a simple table

na(n)
131
241
343
453
561
671
773
883
997
10101
11103
12107
13109
14211
15307
16311
17313
18317
19401
20409
21419
22421
23431
24433
25439
26503
27509
28521
29523
30541
31547
32601
33607
34613
35617
36619
37631
38641
39643
40647
41653
42659
43701
44709
45719
46727
47733
48739
49743
50751
51757
52761
53769
54809

[31,41,43,53,61,71,73,83,97,101,103,107,109,211,
 307,311,313,317,401,409,419,421,431,433,439,503,
 509,521,523,541,547,601,607,613,617,619,631,641,
 643,647,653,659,701,709,719,727,733,739,743,751,
 757,761,769,809]