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A196983 Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4 0

%I #6 Dec 18 2015 18:17:48

%S 1,1,10,113,4244,389518,93411402,60168452277,101406070116889,

%T 451089091560500274,5277294850017253970644

%N Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4

%C Every 0 is next to 0 2's, every 1 is next to 1 3's, every 2 is next to 2 4's, every 3 is next to 3 1's, every 4 is next to 4 0's

%C Diagonal of A196989

%e Some solutions for n=4

%e ..1..3..1..0....1..3..1..1....1..0..0..1....0..1..3..1....0..0..0..0

%e ..0..1..0..0....0..1..1..3....3..1..1..3....0..0..1..0....0..4..0..0

%e ..0..0..0..0....0..0..0..1....1..0..0..1....1..3..1..0....0..0..4..0

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

%K nonn

%O 1,3

%A _R. H. Hardin_ Oct 08 2011

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Last modified April 19 14:10 EDT 2024. Contains 371792 sequences. (Running on oeis4.)