A279267 - OEIS

A279267

Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%I #4 Dec 08 2016 21:06:44

%S 15,120,1603,21882,283450,3490152,42093113,498160278,5812405127,

%T 67071788240,766923320987,8702848263928,98122997204330,

%U 1100209100745782,12277125522368779,136425808025932376,1510393582783303438

%N Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 7 of A279268.

%H R. H. Hardin, <a href="/A279267/b279267.txt">Table of n, a(n) for n = 1..173</a>

%e Some solutions for n=4

%e ..0..1..0..1..0..1..1. .0..1..0..0..1..0..1. .0..1..0..1..1..0..0

%e ..1..0..1..1..0..0..0. .0..1..1..1..0..0..1. .1..0..1..0..0..1..1

%e ..1..0..1..0..1..1..1. .1..0..0..1..0..1..0. .0..0..1..1..0..0..0

%e ..0..1..0..1..0..1..0. .0..1..0..1..0..0..1. .1..1..0..0..1..0..1

%Y Cf. A279268.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 08 2016