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.

A092969 a(1) = 2; for n>1, a(n) = largest prime of the form n!/k + 1, where k < n, or 0 if no such prime exists.

Table of values

n a(n)
1 2
2 3
3 7
4 13
5 61
6 241
7 2521
8 20161
9 72577
10 604801
11 39916801
12 59875201
13 3113510401
14 17435658241
15 186810624001
16 10461394944001
17 118562476032001
18 0
19 24329020081766401
20 304112751022080001
21 12772735542927360001

List of values

[2, 3, 7, 13, 61, 241, 2521, 20161, 72577, 604801, 39916801, 59875201, 3113510401, 17435658241, 186810624001, 10461394944001, 118562476032001, 0, 24329020081766401, 304112751022080001, 12772735542927360001]