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A223153 Number of nX5 0..1 arrays with no adjacent rows or columns having the same least squares slope fit to a straight line, with a single point array taken as having zero slope 0
0, 108, 3872, 327840, 7603472, 320886256, 7310971904, 253170988284, 5969525624304, 188762389042788, 4574121153124456 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A223154

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=3

..1..0..1..1..0....0..1..0..0..1....0..0..1..0..1....0..0..0..1..1

..0..1..0..1..1....0..0..1..0..1....0..1..1..0..0....0..1..0..0..0

..0..1..1..0..0....1..1..1..0..0....0..1..1..1..1....0..1..0..0..1

CROSSREFS

Sequence in context: A221018 A269182 A244877 * A203028 A138784 A035812

Adjacent sequences:  A223150 A223151 A223152 * A223154 A223155 A223156

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2013

STATUS

approved

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Last modified April 10 00:05 EDT 2020. Contains 333392 sequences. (Running on oeis4.)