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A069045 Denominator(sum(i=1,n,1/i^4))/denominator(sum(i=1,n,1/i)). 0

%I

%S 1,8,216,1728,216000,648000,222264000,1778112000,16003008000,

%T 16003008000,21300003648000,21300003648000,46796108014656000,

%U 46796108014656000,46796108014656000,374368864117248000

%N Denominator(sum(i=1,n,1/i^4))/denominator(sum(i=1,n,1/i)).

%K easy,nonn

%O 1,2

%A _Benoit Cloitre_, Apr 03 2002

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Last modified July 29 17:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)