

A238811


Number of nX7 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the sum of elements above it, modulo 3


1



8, 83, 916, 10423, 111564, 1055763, 8526852, 58670336, 348923836, 1828642499, 8605646168, 36967467110, 146912117938, 545935075576, 1913214178820, 6366247430819, 20225439045270, 61627721732585, 180783054211948
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OFFSET

1,1


COMMENTS



LINKS



FORMULA

Empirical polynomial of degree 28 (see link above)


EXAMPLE

Some solutions for n=5
..0..0..0..0..2..2..0....0..0..0..0..2..2..0....0..0..0..0..2..2..0
..0..0..0..0..2..1..2....0..2..2..0..1..1..0....2..2..0..0..1..1..0
..0..0..0..2..1..2..1....0..2..1..0..0..0..2....2..1..0..0..2..2..0
..0..0..2..1..2..1..0....0..0..0..0..0..2..2....0..0..0..2..2..1..2
..0..2..1..2..1..0..0....0..0..0..0..2..2..1....0..0..0..2..1..0..2


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



