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A184080 Number of (n+1)X9 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one 0

%I #4 Mar 31 2012 12:35:56

%S 5645,28248,1588555,114306440,11365443208,1151733506397

%N Number of (n+1)X9 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

%C Column 8 of A184081

%e Some solutions for 3X9

%e ..0..0..0..1..1..1..1..1..1....0..0..0..0..1..1..2..2..2

%e ..0..1..1..0..1..1..1..1..2....0..1..1..1..1..1..0..1..1

%e ..1..0..0..2..0..1..1..1..0....1..0..0..1..1..2..2..2..2

%e ...

%e ...1..2..2..3..4..4..4..5.......1..2..2..3..4..4..5..6...

%e ...2..2..3..3..3..4..4..4.......2..2..3..4..5..5..5..6...

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 09 2011

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)