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.

A223040 Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

n a(n)
1 34
2 17356
3 8580619
4 7361951209
5 3829674402996
6 3416064879339302
7 1823295483454946374
8 1658639508054654478479
9 898959521235518459497060
10 827155543754315639990554261

List of values

[34, 17356, 8580619, 7361951209, 3829674402996, 3416064879339302, 1823295483454946374, 1658639508054654478479, 898959521235518459497060, 827155543754315639990554261]