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.

A264133 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

Table of values

n a(n)
1 1
2 13
3 169
4 1040
5 6400
6 53280
7 443556
8 3383280
9 25806400
10 203738480
11 1608491236
12 12558632416
13 98054154496
14 768752950768
15 6027088830169
16 47188038099235
17 369450492999025
18 2893968831142495
19 22668952280018641
20 177540636808778880

List of values

[1, 13, 169, 1040, 6400, 53280, 443556, 3383280, 25806400, 203738480, 1608491236, 12558632416, 98054154496, 768752950768, 6027088830169, 47188038099235, 369450492999025, 2893968831142495, 22668952280018641, 177540636808778880]