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A297344 Number of 7Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s. 1

%I

%S 128,987,35568,538819,12964224,242728633,5193690642,103574723331,

%T 2142578906273,43505006669691,891632017546020,18191907199249891,

%U 371961523388530138,7597903148736232018,155267718780879744807

%N Number of 7Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.

%C Row 7 of A297338.

%H R. H. Hardin, <a href="/A297344/b297344.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A297338.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 28 2017

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Last modified February 26 05:51 EST 2020. Contains 332277 sequences. (Running on oeis4.)