Search: id:A014556
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%I A014556
%S A014556 2,3,5,11,17,41
%N A014556 Euler's "Lucky" numbers: n such that m^2-m+n is prime for m=0..n-1.
%D A014556 J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 41, p. 16, Ellipses, 
               Paris 2008.
%D A014556 F. Le Lionnais, Les Nombres Remarquables. Paris: Hermann, pp. 88 and 
               144, 1983.
%H A014556 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               LuckyNumberofEuler.html">Link to a section of The World of Mathematics.</
               a>
%H A014556 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Prime-GeneratingPolynomial.html">Link to a section of The World of 
               Mathematics.</a>
%F A014556 a(n)=(A003173(n+3)+1)/4. [From M. F. Hasler (MHasler(AT)univ-ag.fr), 
               Nov 03 2008]
%Y A014556 Cf. A000926, A092749.
%Y A014556 Cf. A117530, A117531.
%Y A014556 Sequence in context: A073021 A079370 A014210 this_sequence A062737 A085613 
               A082605
%Y A014556 Adjacent sequences: A014553 A014554 A014555 this_sequence A014557 A014558 
               A014559
%K A014556 nonn,fini,full,nice
%O A014556 0,1
%A A014556 Eric Weisstein (eric(AT)weisstein.com)

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