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.

A289860 Primes of the form k!4 - 2, where k!4 is the quadruple factorial number (A007662).

Table of values

n a(n)
1 2
2 3
3 19
4 43
5 229
6 3463
7 208843
8 5221123
9 151412623
10 16713607661375623
11 1027438963906784290227656915623
12 7419136758370889359733910587728123
13 64138437276116338514899657030909640623
14 99213846986734491072350087622336908512964418837890623

List of values

[2, 3, 19, 43, 229, 3463, 208843, 5221123, 151412623, 16713607661375623, 1027438963906784290227656915623, 7419136758370889359733910587728123, 64138437276116338514899657030909640623, 99213846986734491072350087622336908512964418837890623]

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

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