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%I #3 Sep 07 2012 12:00:36
%S 15,203,36401,4213597,8195008751,3376465219485,22530453266592757,
%T 20538493137072741201
%N Number of horizontal, diagonal and antidiagonal neighbor colorings of the even squares of a 7Xn array with new integer colors introduced in row major order
%C Row 7 of A216460
%e Some solutions for n=4
%e ..0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x
%e ..x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0
%e ..0..x..3..x....0..x..3..x....0..x..1..x....0..x..3..x....0..x..3..x
%e ..x..4..x..2....x..1..x..2....x..2..x..3....x..4..x..1....x..2..x..4
%e ..5..x..0..x....4..x..5..x....1..x..4..x....1..x..5..x....1..x..5..x
%e ..x..3..x..2....x..6..x..3....x..0..x..1....x..6..x..4....x..4..x..1
%e ..2..x..1..x....5..x..4..x....4..x..3..x....3..x..0..x....2..x..3..x
%K nonn
%O 1,1
%A _R. H. Hardin_ Sep 07 2012