cp's OEIS Frontend

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.

A091439 Least k such that k/phi(k) >= n, where phi is Euler's totient function.

Table of values

n a(n)
1 1
2 2
3 6
4 210
5 30030
6 223092870
7 13082761331670030
8 3217644767340672907899084554130
9 1492182350939279320058875736615841068547583863326864530410
10 16516447045902521732188973253623425320896207954043566485360902980990824644545340710198976591011245999110

List of values

[1, 2, 6, 210, 30030, 223092870, 13082761331670030, 3217644767340672907899084554130, 1492182350939279320058875736615841068547583863326864530410, 16516447045902521732188973253623425320896207954043566485360902980990824644545340710198976591011245999110]

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

Content is available under The OEIS End-User License Agreement.