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.

A078760 Combinations of a partition: number of ways to label a partition (of size n) with numbers 1 to n.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 3
6 6
7 1
8 4
9 6
10 12
11 24
12 1
13 5
14 10
15 20
16 30
17 60
18 120
19 1
20 6
21 15
22 30
23 20
24 60
25 120
26 90
27 180
28 360
29 720
30 1
31 7
32 21
33 42
34 35
35 105
36 210
37 140
38 210
39 420
40 840
41 630
42 1260
43 2520
44 5040
45 1
46 8
47 28
48 56
49 56
50 168
51 336
52 70
53 280
54 420
55 840
56 1680
57 560
58 1120
59 1680
60 3360
61 6720
62 2520

List of values

[1, 1, 1, 2, 1, 3, 6, 1, 4, 6, 12, 24, 1, 5, 10, 20, 30, 60, 120, 1, 6, 15, 30, 20, 60, 120, 90, 180, 360, 720, 1, 7, 21, 42, 35, 105, 210, 140, 210, 420, 840, 630, 1260, 2520, 5040, 1, 8, 28, 56, 56, 168, 336, 70, 280, 420, 840, 1680, 560, 1120, 1680, 3360, 6720, 2520]