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.

A247552 Least numbers x such that the ratio of the sum of all the cyclic permutations of x, plus the unpermuted number, and x itself is equal to n.

Table of values

n a(n)
1 1
2 11
3 111
4 1111
5 11111
6 111111
7 428571
8 11111111
9 111111111
10 1111111111
11 1818
12 111111111111
13 230769
14 428571428571
15 111111111111111
16 1111111111111111
17 4705882352941176
18 111111111111111111
19 473684210526315789
20 11111111111111111111
21 142857
22 18181818

List of values

[1, 11, 111, 1111, 11111, 111111, 428571, 11111111, 111111111, 1111111111, 1818, 111111111111, 230769, 428571428571, 111111111111111, 1111111111111111, 4705882352941176, 111111111111111111, 473684210526315789, 11111111111111111111, 142857, 18181818]

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

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