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.

A259082 a(n) = largest k such that the decimal representation of 5^k does not contain the digit n, or -1 if every power of 5 contains the digit n.

Table of values

n a(n)
0 58
1 42
2 1
3 23
4 55
5 -1
6 45
7 53
8 24
9 65

List of values

[58, 42, 1, 23, 55, -1, 45, 53, 24, 65]