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%I #3 Sep 04 2012 10:54:54
%S 15,409,115975,18378580,41521045376,20358402201792,148049849072167133,
%T 152834688133255075552,2562708952364833106990692
%N Number of horizontal 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 A216338
%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..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1
%e ..1..x..2..x....2..x..0..x....1..x..0..x....2..x..0..x....1..x..2..x
%e ..x..3..x..0....x..1..x..3....x..2..x..3....x..1..x..3....x..3..x..1
%e ..4..x..3..x....2..x..4..x....4..x..0..x....4..x..1..x....4..x..5..x
%e ..x..4..x..1....x..0..x..5....x..4..x..5....x..3..x..2....x..3..x..0
%e ..2..x..0..x....3..x..1..x....0..x..4..x....5..x..6..x....6..x..3..x
%K nonn
%O 1,1
%A _R. H. Hardin_ Sep 04 2012