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.

A069045 Denominator(sum(i=1,n,1/i^4))/denominator(sum(i=1,n,1/i)).

Table of values

n a(n)
1 1
2 8
3 216
4 1728
5 216000
6 648000
7 222264000
8 1778112000
9 16003008000
10 16003008000
11 21300003648000
12 21300003648000
13 46796108014656000
14 46796108014656000
15 46796108014656000
16 374368864117248000

List of values

[1, 8, 216, 1728, 216000, 648000, 222264000, 1778112000, 16003008000, 16003008000, 21300003648000, 21300003648000, 46796108014656000, 46796108014656000, 46796108014656000, 374368864117248000]

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

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