A116003 n*phi(n)*phi(phi(n)) is a fourth power.
1, 32, 512, 3888, 8192, 25000, 62208, 131072, 314928, 400000, 759375, 995328, 2097152, 2839714, 3037500
Offset: 1
Keywords
Examples
3888*phi(3888)*phi(phi(3888))=216^4.
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.
3888*phi(3888)*phi(phi(3888))=216^4.