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.

A050213 Triangle of number of permutations of {1, 2, ..., n} having exactly k cycles, each of which is of length >=r for r=5.

Table of values

n a(n)
5 24
6 120
7 720
8 5040
9 40320
10 362880
11 72576
12 3628800
13 1330560
14 39916800
15 20338560
16 479001600
17 303937920
18 6227020800
19 4643084160
20 87178291200
21 73721007360
22 1743565824
23 1307674368000
24 1224694598400
25 69742632960
26 20922789888000

List of values

[24, 120, 720, 5040, 40320, 362880, 72576, 3628800, 1330560, 39916800, 20338560, 479001600, 303937920, 6227020800, 4643084160, 87178291200, 73721007360, 1743565824, 1307674368000, 1224694598400, 69742632960, 20922789888000]