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%I #15 Mar 20 2019 13:09:22
%S -5,349,529,-575,-605,-719,-809,1501,1969,2179,-2801,3499,-3575,-3629,
%T 4111,4441,-4541,4609,5029,5275,-5465,5701,-6851,7219,7261,-7361,7405,
%U -8195,-8285,8635,-8915,8959,-8975,9145,9649,9739,9949,9985,-10025,10231,-11141,-11219,-11369,11875,12211,12499,12919
%N Values of n such that L(10) and N(10) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.
%H Vincenzo Librandi and Joerg Arndt, <a href="/A227448/b227448.txt">Table of n, a(n) for n = 1..1000</a>
%H Eric L. F. Roettger, <a href="http://people.ucalgary.ca/~hwilliam/files/A_Cubic_Extention_of_the_Lucas_Functions.pdf">A cubic extension of the Lucas functions</a>, Thesis, Dept. of Mathematics and Statistics, Univ. of Calgary, 2009. See page 195.
%Y Cf. A226921-A226929, A227449, A227515-A227523.
%K sign,easy
%O 1,1
%A _Vincenzo Librandi_, Jul 14 2013
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