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A155072 as a simple table

na(n)
117
241
397
4137
5193
6313
7401
8409
9449
10521
11569
12761
13769
14809
15857
16929
17977

[17,41,97,137,193,313,401,409,449,521,569,761,769,
 809,857,929,977]