

A219131


Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 4Xn array


1



81, 253, 6981, 42231, 717585, 5940377, 80892559, 781927421, 9569579009, 99563194119, 1158353288989, 12479863472959, 141758613941473, 1552733071485933, 17438598795150161, 192510267581544599
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

Some solutions for n=3
..1..1..2....0..0..0....1..0..2....2..0..0....0..0..0....0..0..2....2..0..0
..1..0..2....1..0..2....2..0..0....0..0..0....2..0..1....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..1....2..0..0....1..0..2....0..0..1....1..0..0
..2..0..2....1..0..0....0..0..0....2..0..1....0..0..2....2..0..2....0..0..2


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



