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A185566 1/4 the number of nX8 0..3 arrays with no element equal both to the element above and to the element to its left 1
16384, 683437500, 28355191537860, 1176277376648694960, 48796145962555619907720, 2024236566241727245692157080, 83972485690826213759616527499540, 3483475434832751291309593655505225600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A185567

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..158

EXAMPLE

Some solutions for 3X8 with a(1,1)=0

..0..0..0..0..0..0..1..3....0..0..0..0..0..0..1..1....0..0..0..0..0..2..2..1

..0..2..0..2..2..0..0..1....0..2..0..2..2..2..3..1....0..2..0..2..2..0..2..3

..0..0..2..0..0..2..0..3....0..0..2..0..0..2..2..1....0..0..2..0..2..0..0..1

CROSSREFS

Sequence in context: A017575 A223806 A223584 * A160868 A017691 A013962

Adjacent sequences:  A185563 A185564 A185565 * A185567 A185568 A185569

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 31 2011

STATUS

approved

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Last modified May 23 23:31 EDT 2013. Contains 225613 sequences.