A300257 - OEIS

%I #4 Mar 01 2018 07:46:25

%S 32,1841,40023,974646,24735890,618957455,15475106013,388173584774,

%T 9733989458695,244047630745320,6119877683436412,153469991530969214,

%U 3848568699731099635,96511661088984964043,2420262545075648187310

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A300259.

%H R. H. Hardin, <a href="/A300257/b300257.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300259.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 01 2018