

A237328


Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one


1



5120, 45996, 414268, 3988852, 36921568, 342809906, 3194951224, 31126440590, 290583883424, 2718308070358, 25526745822304, 251264218067140, 2361096895787828, 22217145196965248, 209833485159030416
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

Some solutions for n=2
..1..0..2..1..0....0..1..1..2..0....0..0..0..2..0....2..2..0..1..0
..0..0..0..0..1....2..2..2..0..2....0..1..1..0..2....0..1..1..1..2
..1..1..2..0..2....1..1..0..2..1....0..1..0..1..0....2..1..2..2..2


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



