%I A014224
%S A014224 2,4,5,6,9,22,37,41,90,102,105,317,520,541,561,648,780,786,957,1353,
%T A014224 2224,2521,6184,7989,8890,19217,20746,31722,37056
%N A014224 Numbers n such that 3^n - 2 is prime.
%D A014224 Daniel Minoli, W. Nakamine, Mersenne Numbers Rooted On 3 For Number Theoretic 
               Transforms, 1980 IEEE International Conf. on Acoust., Speech and 
               Signal Processing. [From Daniel Minoli (daniel.minoli(AT)ses.com), 
               Aug 26 2009]
%D A014224 Daniel Minoli, Voice over MPLS, McGraw-Hill, New York, NY, 2002, ISBN 
               0-07-140615-8 (p.114-134) [From Daniel Minoli (daniel.minoli(AT)ses.com), 
               Aug 26 2009]
%D A014224 Daniel Minoli, Sufficient Forms For Generalized Perfect Numbers, Ann. 
               Fac. Sciences, Univ. Nation. Zaire, Section Mathem; Vol. 4, No. 2, 
               Dec 1978, pp. 277-302. [From Daniel Minoli (daniel.minoli(AT)ses.com), 
               Aug 26 2009]
%t A014224 lst={};Do[If[PrimeQ[3^n-2], Print[n];AppendTo[lst, n]], {n, 10^5}];lst 
               [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 21 2008]
%Y A014224 3^n - 2 = A058481(n).
%Y A014224 Sequence in context: A003306 A136585 A122721 this_sequence A077312 A140779 
               A117890
%Y A014224 Adjacent sequences: A014221 A014222 A014223 this_sequence A014225 A014226 
               A014227
%K A014224 nonn
%O A014224 1,1
%A A014224 Jud McCranie (j.mccranie(AT)comcast.net)
%E A014224 Corrected by Andrey Kulsha (Andrey_601(AT)tut.by), Feb 04 2001.
%E A014224 More terms from Ryan Propper (rpropper(AT)stanford.edu), May 11 2007