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.

A059300 Triangle of idempotent numbers binomial(n,k)*k^(n-k), version 4.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 6
5 3
6 1
7 12
8 24
9 4
10 1
11 20
12 90
13 80
14 5
15 1
16 30
17 240
18 540
19 240
20 6
21 1
22 42
23 525
24 2240
25 2835
26 672
27 7
28 1
29 56
30 1008
31 7000
32 17920
33 13608
34 1792
35 8
36 1
37 72
38 1764
39 18144
40 78750
41 129024
42 61236
43 4608
44 9
45 1
46 90
47 2880
48 41160
49 272160
50 787500
51 860160
52 262440
53 11520
54 10

List of values

[1, 1, 2, 1, 6, 3, 1, 12, 24, 4, 1, 20, 90, 80, 5, 1, 30, 240, 540, 240, 6, 1, 42, 525, 2240, 2835, 672, 7, 1, 56, 1008, 7000, 17920, 13608, 1792, 8, 1, 72, 1764, 18144, 78750, 129024, 61236, 4608, 9, 1, 90, 2880, 41160, 272160, 787500, 860160, 262440, 11520, 10]