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A302371 Number of 5Xn 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 12:24:33

%S 16,6,397,209,6580,26458,405340,3462040,41451287,458150190,5345696079,

%T 62248870169,729804695624,8580310210250,100969181068120,

%U 1189454516588708,14015983416421641,165203770204722957,1947463456028707595

%N Number of 5Xn 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 Row 5 of A302367.

%H R. H. Hardin, <a href="/A302371/b302371.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302367.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 06 2018

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Last modified May 7 11:17 EDT 2024. Contains 372302 sequences. (Running on oeis4.)