

A253033


Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order


1



280233, 6320511, 141199416, 3170197872, 71502727077, 1612681662123, 36393871038174, 821666746221570, 18551746124013303, 418896908677057743, 9459087305908770567, 213597396514103936859, 4823329436646358186647
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

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


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



