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.

A332171 a(n) = 7*(10^(2n+1)-1)/9 - 6*10^n.

Table of values

n a(n)
0 1
1 717
2 77177
3 7771777
4 777717777
5 77777177777
6 7777771777777
7 777777717777777
8 77777777177777777
9 7777777771777777777
10 777777777717777777777
11 77777777777177777777777
12 7777777777771777777777777
13 777777777777717777777777777
14 77777777777777177777777777777
15 7777777777777771777777777777777

List of values

[1, 717, 77177, 7771777, 777717777, 77777177777, 7777771777777, 777777717777777, 77777777177777777, 7777777771777777777, 777777777717777777777, 77777777777177777777777, 7777777777771777777777777, 777777777777717777777777777, 77777777777777177777777777777, 7777777777777771777777777777777]

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

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