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.

A285528 Numbers n such that A217723(n) (sum of first n primorial numbers minus 1) is prime.

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 7
6 8
7 11
8 14
9 21
10 41
11 42
12 43
13 74
14 78

List of values

[2, 3, 5, 6, 7, 8, 11, 14, 21, 41, 42, 43, 74, 78]

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

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