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.

A130273 Refines A075197(n): number of partitions of n balls of n colors. The refinement has shape A000041(n).

Table of values

n a(n)
1 1
2 4
3 2
4 9
5 24
6 5
7 20
8 84
9 54
10 132
11 15
12 35
13 240
14 320
15 630
16 780
17 720
18 52
19 66
20 570
21 870
22 2280
23 465
24 6240
25 4440
26 1320
27 8280
28 4050
29 203
30 105
31 1260
32 1974
33 6720
34 2394
35 20580
36 19740
37 14385
38 11445
39 83160
40 31080
41 34860
42 77910
43 23772
44 877
45 176
46 2520
47 4312
48 17640
49 5432

List of values

[1, 4, 2, 9, 24, 5, 20, 84, 54, 132, 15, 35, 240, 320, 630, 780, 720, 52, 66, 570, 870, 2280, 465, 6240, 4440, 1320, 8280, 4050, 203, 105, 1260, 1974, 6720, 2394, 20580, 19740, 14385, 11445, 83160, 31080, 34860, 77910, 23772, 877, 176, 2520, 4312, 17640, 5432]