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A223316 Number of nX7 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope 0
128, 502, 32536, 226126, 14821296, 196812586, 11099562288, 182213315626, 7900529237088 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A223317

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A195090 A209380 A135271 * A123293 A188864 A228688

Adjacent sequences:  A223313 A223314 A223315 * A223317 A223318 A223319

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 19 2013

STATUS

approved

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Last modified January 16 23:43 EST 2022. Contains 350377 sequences. (Running on oeis4.)