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A223823 Number of nX6 0..3 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope 0
172, 172, 29584, 45000, 16748672, 32376064, 34078942048, 73306891648, 142350488320080 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A223824

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A252139 A252132 A252131 * A224555 A146339 A067356

Adjacent sequences:  A223820 A223821 A223822 * A223824 A223825 A223826

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 27 2013

STATUS

approved

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Last modified October 22 04:25 EDT 2019. Contains 328315 sequences. (Running on oeis4.)