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.

A265239 Number of n X 4 arrays of permutations of 4 copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0.

Table of values

n a(n)
1 1
2 8
3 888
4 359172
5 327847656
6 559450092072
7 1595319525849600
8 7039355228926588752
9 45427065106451676216288

List of values

[1, 8, 888, 359172, 327847656, 559450092072, 1595319525849600, 7039355228926588752, 45427065106451676216288]