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Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 06 2018 12:20:29

%S 1,496,1109,21831,405340,9361759,188443738,4174802035,91302504318,

%T 1990647394962,43458424036759,950882891683727,20782195034545859,

%U 454232197608277559,9930143090303194255,217079454443097601597

%N Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302367.

%H R. H. Hardin, <a href="/A302366/b302366.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302367.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 06 2018