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.

A204974 Number of nX4 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 11
2 726
3 16813
4 451468
5 11815256
6 311275169
7 8202482914
8 216132492162
9 5694910498914
10 150054777556991
11 3953775892498008
12 104177764014536592
13 2744972159153714019
14 72327078831355250520
15 1905740996306739704109

List of values

[11, 726, 16813, 451468, 11815256, 311275169, 8202482914, 216132492162, 5694910498914, 150054777556991, 3953775892498008, 104177764014536592, 2744972159153714019, 72327078831355250520, 1905740996306739704109]