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.

A173770 a(n) = (4*10^n - 13)/9.

Table of values

n a(n)
1 3
2 43
3 443
4 4443
5 44443
6 444443
7 4444443
8 44444443
9 444444443
10 4444444443
11 44444444443
12 444444444443
13 4444444444443
14 44444444444443
15 444444444444443
16 4444444444444443
17 44444444444444443
18 444444444444444443
19 4444444444444444443
20 44444444444444444443
21 444444444444444444443

List of values

[3, 43, 443, 4443, 44443, 444443, 4444443, 44444443, 444444443, 4444444443, 44444444443, 444444444443, 4444444444443, 44444444444443, 444444444444443, 4444444444444443, 44444444444444443, 444444444444444443, 4444444444444444443, 44444444444444444443, 444444444444444444443]

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

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