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A088081 as a simple table

na(n)
13
25
35
47
57
611
717
817
917
1017
1117
1217
1329
1429
1529
1629
1729
1829
1941
2041
2141
2241
2353
2453
2553
2653
2753
2853
2953
3053
3167
3267
3371
3471
3571
3671
3779
3879
3979
4079
4179
4279
4389
4489
4589
4689
4797
4897
49101
50101
51101
52101
53109
54109
55113
56113
57113
58113
59113
60113
61127
62127
63131
64131
65131

[3,5,5,7,7,11,17,17,17,17,17,17,29,29,29,29,29,29,
 41,41,41,41,53,53,53,53,53,53,53,53,67,67,71,71,
 71,71,79,79,79,79,79,79,89,89,89,89,97,97,101,101,
 101,101,109,109,113,113,113,113,113,113,127,127,
 131,131,131]