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A223047 Number of nX4 0..2 arrays with every row and column least squares fitting to a nonnegative slope straight line, with a single point array taken as having zero slope 0
45, 536, 24120, 570915, 28942155, 932439860, 46018580355, 1721938403990, 83979492229170 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A223048

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A093529 A197501 A283116 * A147842 A027783 A160837

Adjacent sequences:  A223044 A223045 A223046 * A223048 A223049 A223050

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 12 2013

STATUS

approved

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Last modified June 19 00:55 EDT 2019. Contains 324217 sequences. (Running on oeis4.)