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.

A155148 Numbers k such that k^4 has exactly 2 different decimal digits.

Table of values

n a(n)
1 2
2 3
3 10
4 100
5 1000
6 10000
7 100000
8 1000000
9 10000000
10 100000000
11 1000000000
12 10000000000
13 100000000000
14 1000000000000
15 10000000000000
16 100000000000000
17 1000000000000000
18 10000000000000000
19 100000000000000000
20 1000000000000000000
21 10000000000000000000
22 100000000000000000000
23 1000000000000000000000

List of values

[2, 3, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 10000000000000, 100000000000000, 1000000000000000, 10000000000000000, 100000000000000000, 1000000000000000000, 10000000000000000000, 100000000000000000000, 1000000000000000000000]

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

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