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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.

A275411 Least k such that sigma(k*n) = sigma(k*n-1), or 0 if no such k exists.

Table of values

n a(n)
1 15
2 479
3 5
4 155257
5 3

List of values

[15, 479, 5, 155257, 3]

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

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