Search: id:A145205
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%I A145205
%S A145205 4154,4279405106,4408600346145986,4541695990591853912234,
%T A145205 4678809792543413381498198474,4820063060175757335495037232017826,
%U A145205 4965580763957784639661088992670945968466
%N A145205 Numbers X such that (X^2-67)/201 is a square
%F A145205 a(n+2)=1030190*a(n+1)-a(n)
%F A145205 a(n)=2077*{[515095+124*sqrt(17255649)]^n+[515095-124*sqrt(17255649)]^n}-(1/
               2)*sqrt(17255649)*{[515095-124 *sqrt(17255649)]^n-[515095+124*sqrt(17255649)]^n}, 
               with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Nov 25 2008]
%e A145205 The first relation is : 4154^2=201*293^2+67
%Y A145205 Sequence in context: A072896 A052464 A161752 this_sequence A104824 A043627 
               A104918
%Y A145205 Adjacent sequences: A145202 A145203 A145204 this_sequence A145206 A145207 
               A145208
%K A145205 easy,nonn
%O A145205 1,1
%A A145205 Richard Choulet (richardchoulet(AT)yahoo.fr), Oct 04 2008

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