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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.

A178505 Decimal form of the period of 1/n for n such that gcd(n,10)=1. Leading zeros are suppressed.

Table of values

n a(n)
1 3
2 142857
3 1
4 9
5 76923
6 588235294117647
7 52631578947368421
8 47619
9 434782608695652173913
10 37
11 344827586206896551724137931
12 32258064516129
13 3
14 27
15 25641
16 2439
17 23255813953488372093

List of values

[3, 142857, 1, 9, 76923, 588235294117647, 52631578947368421, 47619, 434782608695652173913, 37, 344827586206896551724137931, 32258064516129, 3, 27, 25641, 2439, 23255813953488372093]

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

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