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.

A060492 Triangle T(n,k) of k-block ordered tricoverings of an unlabeled n-set (n >= 3, k = 4..2n).

Table of values

n a(n)
3 4
4 60
5 120
6 13
7 375
8 3030
9 9030
10 5040
11 28
12 1392
13 24552
14 207900
15 838320
16 1345680
17 362880
18 50
19 4020
20 130740
21 2208430
22 20334720
23 101752560
24 257065200
25 261122400
26 46569600
27 80
28 9960
29 551640
30 16365410
31 274814760
32 2709457128
33 15812198640

List of values

[4, 60, 120, 13, 375, 3030, 9030, 5040, 28, 1392, 24552, 207900, 838320, 1345680, 362880, 50, 4020, 130740, 2208430, 20334720, 101752560, 257065200, 261122400, 46569600, 80, 9960, 551640, 16365410, 274814760, 2709457128, 15812198640]