%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