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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A238812

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical polynomial of degree 28

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

Sequence in context: A179980 A236671 A232226 * A307829 A039939 A199907

Adjacent sequences:  A238808 A238809 A238810 * A238812 A238813 A238814

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 05 2014

STATUS

approved

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Last modified February 20 04:38 EST 2020. Contains 332063 sequences. (Running on oeis4.)