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.

A297676 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1's.

Table of values

n a(n)
1 2
2 11
3 150
4 4633
5 401678
6 78957968
7 41030621948
8 49892385650107
9 157266548152111938
10 1187668466030040777022
11 22731639382952184172610914
12 1058867886808501107531538859306

List of values

[2, 11, 150, 4633, 401678, 78957968, 41030621948, 49892385650107, 157266548152111938, 1187668466030040777022, 22731639382952184172610914, 1058867886808501107531538859306]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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