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.

A053962 Numbers k such that k^2 contains only digits {4,7,8}.

Table of values

n a(n)
1 2
2 22
3 28
4 88
5 86478
6 94227622
7 9208064263934568938
8 22019193553462506122
9 6984617991328143315228383028

List of values

[2, 22, 28, 88, 86478, 94227622, 9208064263934568938, 22019193553462506122, 6984617991328143315228383028]