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.

A298081 Number of n X n 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

This page as a plain text file.
%I A298081 #6 May 03 2020 15:42:56
%S A298081 0,1,0,10,154,2767,65218,4883926,603770100,117856794865
%N A298081 Number of n X n 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
%C A298081 Diagonal of A298087.
%e A298081 Some solutions for n=7
%e A298081 ..0..0..0..0..1..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
%e A298081 ..0..1..1..0..1..1..0. .0..1..1..1..1..0..1. .0..0..1..0..0..0..1
%e A298081 ..1..0..0..1..1..1..1. .1..1..0..0..1..0..1. .1..1..1..1..0..1..0
%e A298081 ..1..1..1..1..1..0..1. .0..1..1..0..0..1..1. .1..1..1..1..1..1..0
%e A298081 ..0..1..1..1..0..1..0. .0..0..0..0..1..0..1. .0..0..0..1..0..0..1
%e A298081 ..0..0..1..0..0..1..0. .1..0..0..1..0..1..0. .0..1..1..0..1..1..0
%e A298081 ..0..1..1..1..1..0..0. .1..1..0..1..1..0..0. .1..1..0..0..0..0..0
%Y A298081 Cf. A298087.
%K A298081 nonn
%O A298081 1,4
%A A298081 _R. H. Hardin_, Jan 12 2018

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

Content is available under The OEIS End-User License Agreement.