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.

A264067 Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,1 or 1,2.

Table of values

n a(n)
1 34
2 605
3 12100
4 239580
5 4745620
6 94000060
7 1861931060
8 36880691100
9 730524027860
10 14470047586940
11 286619288597620
12 5677287244745820
13 112454366267732500
14 2227469555002850620
15 44121191405337881780
16 873942149581465363740
17 17310839904533248019540
18 342889032579435158191100

List of values

[34, 605, 12100, 239580, 4745620, 94000060, 1861931060, 36880691100, 730524027860, 14470047586940, 286619288597620, 5677287244745820, 112454366267732500, 2227469555002850620, 44121191405337881780, 873942149581465363740, 17310839904533248019540, 342889032579435158191100]