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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A234145 a(n) = denominator of sum_(k=1..n) 1/(2*k-1)^n.

Table of values

n a(n)
0 1
1 1
2 9
3 3375
4 121550625
5 3101364196875
6 1730690595263722640625
7 376292999446907764908950466328125
8 16950118160085960270323673755750390625
9 90543986887356385297750500755391437150880164126953125

List of values

[1, 1, 9, 3375, 121550625, 3101364196875, 1730690595263722640625, 376292999446907764908950466328125, 16950118160085960270323673755750390625, 90543986887356385297750500755391437150880164126953125]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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