A298381 - OEIS

%I #4 Jan 18 2018 07:21:08

%S 1,130,200,1502,12982,94292,682833,5489368,43729967,338622211,

%T 2701303036,21549495059,171045426415,1363643670602,10880013007248,

%U 86778764601030,692319891192971,5525776843276263,44104027596135023,352017919085525224

%N Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 7 of A298382.

%H R. H. Hardin, <a href="/A298381/b298381.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A298382.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 18 2018