This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A143832 #6 Jun 02 2025 00:33:10
%S A143832 13,223,349,503,1399,1693,3583,6173,9463,16183,18143,27103,28349,
%T A143832 33613,40823,42349,48733,59149,66653,70573,80863,89599,101149,115933,
%U A143832 126349,129023,139999,151423,157303,169399,181943,185149,201599,204973,218749
%N A143832 Primes of the form 14 n^2-1.
%C A143832 Primes of the form k n^2-1 k = 2 A066436 these n are A066049 k = 4 only one prime 3 when n = 1 k = 6 A090686 these n are A143826 k = 8 A090684 these n are A143827 k =10 A143828 these n are A143829 k =12 A143830 these n are A143831 k =14 A143832 these n are A143833 k =16 lack of primes
%t A143832 p = 14; a = {}; Do[k = p x^2 - 1; If[PrimeQ[k], AppendTo[a, k]], {x, 1, 1000}]; a
%t A143832 Select[14*Range[200]^2-1,PrimeQ] (* _Harvey P. Dale_, Jul 29 2024 *)
%Y A143832 A066436, A066049, A090686, A090684, A143826, A143827, A143828, A143829, A143830, A143831, A143833
%K A143832 nonn
%O A143832 1,1
%A A143832 _Artur Jasinski_, Sep 02 2008