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.

A302206 Number of n X n 0..1 arrays with every element equal to 0, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 1
2 2
3 16
4 7
5 448
6 1395
7 55922
8 3509969
9 73189971
10 33707749345
11 2102356505182

List of values

[1, 2, 16, 7, 448, 1395, 55922, 3509969, 73189971, 33707749345, 2102356505182]