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A069986 Denominator of b(n)=binomial(2n,n)^3*(42n+5)/2^(12n+4). 1

%I

%S 16,8192,33554432,17179869184,562949953421312,288230376151711744,

%T 1180591620717411303424,604462909807314587353088,

%U 158456325028528675187087900672,81129638414606681695789005144064

%N Denominator of b(n)=binomial(2n,n)^3*(42n+5)/2^(12n+4).

%F sum(n>=1, b(n))=1/Pi (Ramanujan)

%Y Cf. A069985.

%K easy,frac,nonn

%O 0,1

%A _Benoit Cloitre_, May 01 2002

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Last modified April 26 03:37 EDT 2019. Contains 322469 sequences. (Running on oeis4.)