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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.

A373739 a(n) is the smallest number that is in a cycle of length n when iterating x <- phi(sigma(x)).

Table of values

n	a(n)
1	1
2	4
3	16
4	576

List of values

[1, 4, 16, 576]

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

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