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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.

A298759 Numbers k such that bphi(k) = k/2, where bphi is the bi-unitary analog of Euler's totient function (A116550).

Table of values

n a(n)
1 2
2 6
3 30
4 42
5 1722
6 1806
7 19977474

List of values

[2, 6, 30, 42, 1722, 1806, 19977474]

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

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