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A295373 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1's. 0

%I #6 Apr 26 2020 20:50:23

%S 2,8,74,1634,85310,10437240,2995361770,2013609204094,3172028798241544,

%T 11706071393300493820,101212810609370065235246,

%U 2050164710762566420019514822

%N Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1's.

%C Diagonal of A295379.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A295379.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 21 2017

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)