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.

A094587 Triangle of permutation coefficients arranged with 1's on the diagonal. Also, triangle of permutations on n letters with exactly k+1 cycles and with the first k+1 letters in separate cycles.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 1
6 6
7 6
8 3
9 1
10 24
11 24
12 12
13 4
14 1
15 120
16 120
17 60
18 20
19 5
20 1
21 720
22 720
23 360
24 120
25 30
26 6
27 1
28 5040
29 5040
30 2520
31 840
32 210
33 42
34 7
35 1
36 40320
37 40320
38 20160
39 6720
40 1680
41 336
42 56
43 8
44 1
45 362880
46 362880
47 181440
48 60480
49 15120
50 3024
51 504
52 72
53 9
54 1
55 3628800
56 3628800

List of values

[1, 1, 1, 2, 2, 1, 6, 6, 3, 1, 24, 24, 12, 4, 1, 120, 120, 60, 20, 5, 1, 720, 720, 360, 120, 30, 6, 1, 5040, 5040, 2520, 840, 210, 42, 7, 1, 40320, 40320, 20160, 6720, 1680, 336, 56, 8, 1, 362880, 362880, 181440, 60480, 15120, 3024, 504, 72, 9, 1, 3628800, 3628800]