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.

A256630 Numbers n such that the decimal expansions of both n and n^2 have 0 as smallest digit and 4 as largest digit.

Table of values

n a(n)
1 142201
2 1422010
3 11141110
4 11411110
5 11412021
6 14220100
7 20323421
8 21024111
9 101203421
10 110141011
11 110142201
12 111411100
13 114111100
14 114120210
15 120013421
16 141433102
17 142201000
18 203234210
19 210241110
20 1012034210
21 1101410011
22 1101410110
23 1101422010
24 1114111000

List of values

[142201, 1422010, 11141110, 11411110, 11412021, 14220100, 20323421, 21024111, 101203421, 110141011, 110142201, 111411100, 114111100, 114120210, 120013421, 141433102, 142201000, 203234210, 210241110, 1012034210, 1101410011, 1101410110, 1101422010, 1114111000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.