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Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 25 2018 12:44:41

%S 64,86,687,4112,56046,965150,15768709,258412452,4730074082,

%T 89182240009,1607792486756,28651954738510,525363767853510,

%U 9705710828046354,176560700611952149,3198325214799036047,58453456076912623357

%N Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 7 of A303525.

%H R. H. Hardin, <a href="/A303530/b303530.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A303525.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 25 2018