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.

A019575 Place n distinguishable balls in n boxes (in n^n ways); let T(n,k) = number of ways that the maximum in any box is k, for 1 <= k <= n; sequence gives triangle of numbers T(n,k).

Table of values

n a(n)
1 1
2 2
3 2
4 6
5 18
6 3
7 24
8 180
9 48
10 4
11 120
12 2100
13 800
14 100
15 5
16 720
17 28800
18 14700
19 2250
20 180
21 6
22 5040
23 458640
24 301350
25 52920
26 5292
27 294
28 7
29 40320
30 8361360
31 6867840
32 1342600
33 153664
34 10976
35 448
36 8
37 362880
38 172141200
39 172872000
40 36991080
41 4644864
42 387072
43 20736
44 648
45 9

List of values

[1, 2, 2, 6, 18, 3, 24, 180, 48, 4, 120, 2100, 800, 100, 5, 720, 28800, 14700, 2250, 180, 6, 5040, 458640, 301350, 52920, 5292, 294, 7, 40320, 8361360, 6867840, 1342600, 153664, 10976, 448, 8, 362880, 172141200, 172872000, 36991080, 4644864, 387072, 20736, 648, 9]