A303628 - OEIS

%I #4 Apr 27 2018 09:58:29

%S 32,10,2520,10741,398859,6446485,179884814,4470005178,122594183754,

%T 3358212405222,93494167786193,2615702793245652,73423169266382719,

%U 2065363849547312414,58153976434030392443,1638589480520177365526

%N Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 6 of A303624.

%H R. H. Hardin, <a href="/A303628/b303628.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

%Y Cf. A303624.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 27 2018