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Number of 6Xn 0..3 arrays with no more than floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order
0

%I #3 Mar 09 2013 07:58:27

%S 187,2522,119393,4320431,213112150,10615237672,577820456398,

%T 33236182725503,2041367121617874,132252751824700275

%N Number of 6Xn 0..3 arrays with no more than floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order

%C Row 6 of A222906

%e Some solutions for n=3

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 09 2013