A234145 a(n) = denominator of sum_(k=1..n) 1/(2*k-1)^n.
1, 1, 9, 3375, 121550625, 3101364196875, 1730690595263722640625, 376292999446907764908950466328125, 16950118160085960270323673755750390625, 90543986887356385297750500755391437150880164126953125
Offset: 0
Links
- Wolfdieter Lang, Theta(k, n), k-family of rational sequences and limits.
Programs
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Mathematica
a[n_] := Sum[1/(2*k-1)^n, {k, 1, n}] // Denominator; Table[a[n], {n, 0, 10}]
Comments