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%I
%S 1,1,20,28,6,22,52,20,17,19,28,92,50,18,116,124,11,35,148,52,82,86,60,
%T 188,49,17,212,220,38,118,244,84,65,67,92,284,146,50,308,316,27,83,
%U 340,116,178,182,124,380,97,33,404,412,70,214,436,148
%N Denominator of (n*(n-1)/(8*(2*n+1)).
%Y Cf. A059616.
%K nonn,frac
%O 0,3
%A _N. J. A. Sloane_, Feb 18 2001
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