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Number of 4X(n+1) 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors
1

%I #5 Mar 31 2012 12:37:05

%S 39419,4826836,605359630,75356390650,9373958322702,1166726509999348,

%T 145191341529859260,18068679783458324318,2248591840057920050816,

%U 279830384246663896819104,34824036926366339289590130

%N Number of 4X(n+1) 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

%C Row 3 of A205281

%H R. H. Hardin, <a href="/A205283/b205283.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 24 2012