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A143832 Primes of the form 14 n^2-1 3


%S 13,223,349,503,1399,1693,3583,6173,9463,16183,18143,27103,28349,

%T 33613,40823,42349,48733,59149,66653,70573,80863,89599,101149,115933,

%U 126349,129023,139999,151423,157303,169399,181943,185149,201599,204973,218749

%N Primes of the form 14 n^2-1

%C 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 p = 14; a = {}; Do[k = p x^2 - 1; If[PrimeQ[k], AppendTo[a, k]], {x, 1, 1000}]; a

%Y A066436, A066049, A090686, A090684, A143826, A143827, A143828, A143829, A143830, A143831, A143833

%K nonn

%O 1,1

%A _Artur Jasinski_, Sep 02 2008

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Last modified December 16 04:22 EST 2019. Contains 330013 sequences. (Running on oeis4.)