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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.

A256444 Numbers k such that sigma(k) = 2*(phi(k-1)+1).

Table of values

n	a(n)
1	3
2	5
3	17
4	26
5	257
6	65537
7	10866583226

List of values

[3, 5, 17, 26, 257, 65537, 10866583226]

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