A303202 - OEIS

%I #4 Apr 19 2018 13:42:24

%S 64,86,305,1357,5573,32223,164295,791150,3806973,20061588,102569116,

%T 509264634,2533233396,13009655163,66295486978,333341116143,

%U 1676598847494,8537179144591,43394714360416,219303340502779,1108007577865676

%N Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 7 of A303197.

%H R. H. Hardin, <a href="/A303202/b303202.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A303197.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 19 2018