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A222898 T(n,k)=Number of nXk 0..1 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope 2
2, 0, 0, 0, 5, 0, 0, 2, 2, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 251, 0, 0, 0, 0, 0, 0, 444, 444, 0, 0, 0, 0, 0, 0, 972, 1872, 972, 0, 0, 0, 0, 0, 0, 752, 8920, 8920, 752, 0, 0, 0, 0, 0, 0, 372, 6064, 720452, 6064, 372, 0, 0, 0, 0, 0, 0, 64, 0, 4109604, 4109604, 0, 64, 0, 0, 0, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.2.0.0...0....0.........0.........0.........0..........0.........0.0.0.0.0.0

.0.5.2...0....0.........0.........0.........0..........0.........0.0.0.0.0

.0.2.8...0....0.........0.........0.........0..........0.........0.0.0.0

.0.0.0.251..444.......972.......752.......372.........64.........0.0.0

.0.0.0.444.1872......8920......6064.........0..........0.........0.0

.0.0.0.972.8920....720452...4109604..49760067..193345960.989498744

.0.0.0.752.6064...4109604..33675352.845060178.3867788696

.0.0.0.372....0..49760067.845060178

.0.0.0..64....0.193345960

.0.0.0...0....0

.0.0.0...0

.0.0.0

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..112

EXAMPLE

Some solutions for n=4 k=4

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

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

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

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

CROSSREFS

Sequence in context: A131427 A153198 A182492 * A113044 A333792 A082399

Adjacent sequences:  A222895 A222896 A222897 * A222899 A222900 A222901

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 08 2013

STATUS

approved

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Last modified May 25 07:29 EDT 2020. Contains 334584 sequences. (Running on oeis4.)