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A297756 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's. 0

%I #6 May 03 2020 15:37:00

%S 1,2,52,1181,109228,59707529,108229776807,486950815286291,

%T 7321785704464787533,424569942925543143564742

%N Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's.

%C Diagonal of A297762.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297762.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 05 2018

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Last modified September 11 05:34 EDT 2024. Contains 375814 sequences. (Running on oeis4.)