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.

A124274 Nonprime numbers k that divide A124271(k) = Sum_{i=1..k} (prime(i)^k - 1) / (prime(i) - 1).

Table of values

n	a(n)
1	1
2	9
3	15
4	121

List of values

[1, 9, 15, 121]

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

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