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Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an nX6 array with new integer colors introduced in row major order
0

%I #3 Aug 30 2012 05:43:08

%S 2,42,1534,167130,30312074,10311562327,4761748786964,3439948243132701

%N Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an nX6 array with new integer colors introduced in row major order

%C Column 6 of A216031

%e Some solutions for n=4

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

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

%e ..x..3..x..5..x..0....x..3..x..5..x..6....x..4..x..0..x..5....x..4..x..0..x..4

%e ..5..x..0..x..2..x....3..x..4..x..7..x....5..x..1..x..5..x....2..x..5..x..4..x

%K nonn

%O 1,1

%A _R. H. Hardin_ Aug 30 2012