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.

A002827 Unitary perfect numbers: numbers k such that usigma(k) - k = k.

Table of values

n a(n)
1 6
2 60
3 90
4 87360
5 146361946186458562560000

List of values

[6, 60, 90, 87360, 146361946186458562560000]