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A196011 Number of n X n 0..4 arrays with each element equal to the number of its horizontal and vertical neighbors within one of itself 0

%I #6 Dec 18 2015 18:17:47

%S 1,1,2,25,106,708,22711,670449,44864449,5122273171,1106078073333,

%T 426788297174150

%N Number of n X n 0..4 arrays with each element equal to the number of its horizontal and vertical neighbors within one of itself

%C Diagonal of A196017

%e Some solutions for n=4

%e ..2..3..2..2....2..3..2..0....0..2..3..2....0..2..2..2....2..2..3..2

%e ..3..3..0..2....3..4..3..2....2..3..4..3....2..3..0..2....2..0..3..3

%e ..3..4..3..2....2..3..0..2....2..0..3..2....3..4..3..2....2..3..4..3

%e ..2..3..2..0....0..2..2..2....2..2..2..0....2..3..2..0....0..2..3..2

%K nonn

%O 1,3

%A _R. H. Hardin_ Sep 26 2011

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)