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.

A173812 a(n) = (8*10^n - 17)/9 for n > 0.

Table of values

n a(n)
1 7
2 87
3 887
4 8887
5 88887
6 888887
7 8888887
8 88888887
9 888888887
10 8888888887
11 88888888887
12 888888888887
13 8888888888887
14 88888888888887
15 888888888888887
16 8888888888888887
17 88888888888888887
18 888888888888888887
19 8888888888888888887
20 88888888888888888887
21 888888888888888888887

List of values

[7, 87, 887, 8887, 88887, 888887, 8888887, 88888887, 888888887, 8888888887, 88888888887, 888888888887, 8888888888887, 88888888888887, 888888888888887, 8888888888888887, 88888888888888887, 888888888888888887, 8888888888888888887, 88888888888888888887, 888888888888888888887]

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

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