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.

A264129 Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

Table of values

n a(n)
1 80
2 1040
3 13600
4 178000
5 2330000
6 30500000
7 399250000
8 5226250000
9 68412500000
10 895531250000
11 11722656250000
12 153451562500000
13 2008707031250000
14 26294316406250000
15 344197070312500000
16 4505598144531250000

List of values

[80, 1040, 13600, 178000, 2330000, 30500000, 399250000, 5226250000, 68412500000, 895531250000, 11722656250000, 153451562500000, 2008707031250000, 26294316406250000, 344197070312500000, 4505598144531250000]