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.

A205159 Number of n X 6 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.

Table of values

n a(n)
1 143
2 447343
3 754700909
4 1427843505563
5 2654271236904226
6 4948963310952700521
7 9223088985799640757493
8 17190329064400885392195249
9 32039205913239024375598390394

List of values

[143, 447343, 754700909, 1427843505563, 2654271236904226, 4948963310952700521, 9223088985799640757493, 17190329064400885392195249, 32039205913239024375598390394]