|
%I
%S 13,105,101,374,1034,2653,6426,16855,42256,110818,293243,759597,
%T 1962550,5113934,13247520,34363929,89475407,232484569,603475499,
%U 1568532379,4074861880,10582600325,27499026562,71450610025,185607848522
%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
%C Column 6 of A304931.
%H R. H. Hardin, <a href="/A304929/b304929.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..1..0. .0..1..1..1..1..1. .0..0..1..1..0..0. .0..0..0..0..1..1
%e ..0..0..0..0..0..0. .1..1..1..1..1..1. .0..1..1..1..1..0. .0..0..0..0..0..1
%e ..0..0..0..0..0..0. .1..1..1..1..1..0. .1..1..1..1..1..1. .0..0..0..0..0..0
%e ..0..0..0..0..0..1. .1..1..1..1..0..0. .1..1..1..1..1..1. .0..0..0..0..0..0
%e ..1..0..0..0..1..1. .1..1..1..0..0..0. .1..0..1..1..1..0. .1..0..0..0..0..1
%Y Cf. A304931.
%K nonn
%O 1,1
%A _R. H. Hardin_, May 21 2018
|
