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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.

A289756 Primes of the form k!8-1, where k!8 is the octuple factorial number (A114800).

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 19
6 47
7 83
8 127
9 359
10 1847
11 26879
12 55439
13 13366079
14 188743679
15 38761631999
16 9033331507199
17 3896394330931199
18 152349556104345599
19 5305528527460761599
20 57299708096576225279999
21 160680029832131217407999
22 383414179456168545484799

List of values

[2, 3, 5, 7, 19, 47, 83, 127, 359, 1847, 26879, 55439, 13366079, 188743679, 38761631999, 9033331507199, 3896394330931199, 152349556104345599, 5305528527460761599, 57299708096576225279999, 160680029832131217407999, 383414179456168545484799]

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

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