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.

A297500 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1's.

Table of values

n a(n)
1 1
2 10
3 110
4 2281
5 270845
6 66289769
7 28914051279
8 44145856928170
9 190314910908111935
10 1690602288933775004206
11 41411616264665765678770302

List of values

[1, 10, 110, 2281, 270845, 66289769, 28914051279, 44145856928170, 190314910908111935, 1690602288933775004206, 41411616264665765678770302]