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.

A208019 Number of n X 4 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any horizontal, vertical, diagonal or antidiagonal neighbor (colorings ignoring permutations of colors).

Table of values

n a(n)
1 5
2 87
3 27093
4 30066912
5 80318704605
6 421673189900658
7 3840411377316733859
8 55738840149772892317910
9 1212109474086951274342594323
10 37684550247867169399313491413883
11 1614317526939802578784333734266333582
12 92481709137707355217408169152041892948306

List of values

[5, 87, 27093, 30066912, 80318704605, 421673189900658, 3840411377316733859, 55738840149772892317910, 1212109474086951274342594323, 37684550247867169399313491413883, 1614317526939802578784333734266333582, 92481709137707355217408169152041892948306]