A297856 - OEIS

%I #4 Jan 07 2018 10:40:20

%S 5,49,33,90,81,131,146,252,320,522,705,1188,1654,2554,4086,6240,9384,

%T 14677,22912,34760,54598,85044,131603,204203,317467,494005,767077,

%U 1194926,1861059,2894147,4502964,7013005,10913427,17000934,26479606

%N Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero.

%C Column 6 of A297858.

%H R. H. Hardin, <a href="/A297856/b297856.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A297858.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 07 2018