

A183538


Number of nX4 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors


1



10, 128, 1326, 16704, 124568, 1260440, 12593728, 127023332, 1319837248, 12961478564, 130844028200, 1321487686388, 13343782478808, 135086068850496, 1360709615352544, 13741314468124836, 138768727626932600
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

Some solutions for 3X4
..2..2..0..0....0..0..2..2....2..2..3..3....1..3..1..1....3..0..2..1
..0..0..0..0....0..2..2..0....0..1..2..0....2..0..1..2....3..3..3..3
..2..2..0..0....0..0..2..2....1..2..3..3....0..3..2..0....1..2..1..0


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



