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%I #6 Oct 19 2021 11:43:15
%S 21,203,20,466,2353,1586,23911,117161,369290,3815083,22352269,
%T 133622612,1094086797,7257658041,50479207435,380579362922,
%U 2653381878723,19060249633810,139787845467370,993619765856273,7181175650570587
%N Number of n X 7 0..1 arrays with every element equal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero.
%C Column 7 of A297907.
%H R. H. Hardin, <a href="/A297906/b297906.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=7
%e ..0..1..0..0..1..0..1. .0..1..0..0..1..0..0. .0..1..0..0..0..0..0
%e ..0..1..0..0..1..0..1. .1..1..1..1..1..1..1. .1..0..0..1..0..1..1
%e ..1..1..1..1..1..0..0. .0..1..0..0..0..0..0. .1..1..0..1..0..1..1
%e ..0..1..0..0..1..0..1. .0..1..0..0..1..0..0. .1..1..0..0..0..0..1
%e ..0..1..0..0..1..0..0. .1..1..1..1..1..1..1. .0..0..1..1..1..1..0
%e ..1..1..1..1..1..0..0. .1..0..0..0..0..0..0. .1..1..0..0..1..0..0
%e ..0..1..0..0..1..1..1. .1..0..0..1..1..0..0. .1..1..0..0..0..0..1
%Y Cf. A297907.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 08 2018
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