cp's OEIS Frontend

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.

A033289 Odd power perfect numbers: numbers k such that opsigma(k) = 2*k, where opsigma(k) = A033634(k).

Table of values

n a(n)
1 6
2 264
3 45408
4 10177920
5 9310826880
6 27806077440
7 25437179036160
8 303753589954560
9 277875743791011840
10 14504815632384
11 13269098919960576
12 2534919599177957376
13 2318960803647990104064

List of values

[6, 264, 45408, 10177920, 9310826880, 27806077440, 25437179036160, 303753589954560, 277875743791011840, 14504815632384, 13269098919960576, 2534919599177957376, 2318960803647990104064]

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

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