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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.

A216156 Period of powers of 11 mod 10^n.

Table of values

n a(n)
1 10
2 50
3 500
4 5000
5 50000
6 500000
7 5000000
8 50000000
9 500000000
10 5000000000
11 50000000000
12 500000000000
13 5000000000000
14 50000000000000
15 500000000000000
16 5000000000000000
17 50000000000000000
18 500000000000000000

List of values

[10, 50, 500, 5000, 50000, 500000, 5000000, 50000000, 500000000, 5000000000, 50000000000, 500000000000, 5000000000000, 50000000000000, 500000000000000, 5000000000000000, 50000000000000000, 500000000000000000]

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

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