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.

A137144 Numbers k such that k and k^2 use only the digits 4, 6, 7 and 8.

Table of values

n a(n)
1 8
2 88
3 8874
4 68474
5 86478

List of values

[8, 88, 8874, 68474, 86478]