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A205280 Number of (n+1)X5 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 687900,233119498,75356390650,23973193183186,7657621275762398,

%T 2447251756241315390,781739925863274531798,249710555606742254384236,

%U 79769182279819645140717282,25481988765995464149652889092

%N Number of (n+1)X5 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

%C Column 4 of A205281

%H R. H. Hardin, <a href="/A205280/b205280.txt">Table of n, a(n) for n = 1..48</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 24 2012

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)