Search: id:A073595
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%I A073595
%S A073595 1,3,45,315,1575,51975,4729725,4729725,18555075,4583103525,50414138775,
%T A073595 1159525191825,793359341775,15073827493725,2185704986590125,
%U A073595 67756854584293875,1151866527932995875,3455599583798987625
%N A073595 Denominator of b(n) = sum(k=1,n,(-1)^(k+1)/k*sum(i=0,k-1,(-1)^i/(2*i+1))).
%F A073595 lim n -> infinity b(n) = G the Catalan constant
%o A073595 (PARI) a(n)=denominator(sum(k=1,n,(-1)^(k+1)/k*sum(i=0,k-1,(-1)^i/(2*i+1))))
%Y A073595 Cf. A073594.
%Y A073595 Sequence in context: A069955 A062346 A002682 this_sequence A117972 A061532 
               A060242
%Y A073595 Adjacent sequences: A073592 A073593 A073594 this_sequence A073596 A073597 
               A073598
%K A073595 easy,frac,nonn
%O A073595 1,2
%A A073595 Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 28 2002

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