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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.

A383942 a(n) = (8*10^(2n) - 10^(n+1) + 2) / 9.

Table of values

n a(n)
1 78
2 8778
3 887778
4 88877778
5 8888777778
6 888887777778
7 88888877777778
8 8888888777777778
9 888888887777777778
10 88888888877777777778
11 8888888888777777777778
12 888888888887777777777778
13 88888888888877777777777778
14 8888888888888777777777777778

List of values

[78, 8778, 887778, 88877778, 8888777778, 888887777778, 88888877777778, 8888888777777778, 888888887777777778, 88888888877777777778, 8888888888777777777778, 888888888887777777777778, 88888888888877777777777778, 8888888888888777777777777778]

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

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