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.

A230165 Numbers k such that k = sigma(k'), where k' is the arithmetic derivative of k.

Table of values

n a(n)
1 6
2 15
3 42
4 47058

List of values

[6, 15, 42, 47058]