A300106 - OEIS

%I #4 Feb 25 2018 06:11:33

%S 5,604,3432,29439,526613,7603542,96369782,1370857737,19722172824,

%T 274565687852,3855577109047,54562794271637,768615558535471,

%U 10820925000917541,152595727533867989,2151225125460327473

%N Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A300108.

%H R. H. Hardin, <a href="/A300106/b300106.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300108.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 25 2018