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A183643 Number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock summing to 8 0

%I #7 Mar 31 2012 12:35:53

%S 85,1001,10213,97145,889525,7969001

%N Number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock summing to 8

%C Diagonal of A183652

%e Some solutions for 3X3

%e ..3..2..1....2..1..0....1..3..0....2..0..4....2..1..2....3..2..2....3..2..3

%e ..2..1..4....2..3..4....3..1..4....4..2..2....2..3..2....0..3..1....0..3..0

%e ..2..3..0....2..1..0....1..3..0....1..1..3....2..1..2....1..4..0....2..3..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 06 2011

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Last modified June 18 04:26 EDT 2024. Contains 373468 sequences. (Running on oeis4.)