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.

A070037 Nonprime numbers k such that sigma(k) == k+1 (mod phi(k)).

Table of values

n a(n)
1 1
2 4
3 15
4 900
5 903
6 28611063

List of values

[1, 4, 15, 900, 903, 28611063]