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.

A019578 Place n distinguishable balls in n boxes (in n^n ways); let f(n,k) = number of ways that max in any box is k, for 1<=k<=n; sequence gives f(n,3)/n.

Table of values

n a(n)
3 1
4 12
5 160
6 2450
7 43050
8 858480
9 19208000
10 477237600
11 13049190000
12 389642022000
13 12620614406400
14 440871877446000
15 16525943429595600
16 661779275661504000
17 28199857953915648000
18 1274233240573028736000
19 60863881753459328544000

List of values

[1, 12, 160, 2450, 43050, 858480, 19208000, 477237600, 13049190000, 389642022000, 12620614406400, 440871877446000, 16525943429595600, 661779275661504000, 28199857953915648000, 1274233240573028736000, 60863881753459328544000]