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A297589 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1's. 0

%I #6 May 03 2020 15:33:15

%S 1,5,25,154,3747,163704,9403199,1120526916,303459238317,

%T 138838185786076,112146192906098209,184312505263036081408,

%U 579679725644521049265576,3298268036530237426659387766

%N Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1's.

%C Diagonal of A297595.

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A297595.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 01 2018

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Last modified April 24 19:59 EDT 2024. Contains 371963 sequences. (Running on oeis4.)