A223154 - OEIS

A223154

T(n,k)=Number of nXk 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

2, 0, 0, 0, 10, 0, 0, 12, 12, 0, 0, 66, 96, 66, 0, 0, 108, 788, 788, 108, 0, 0, 402, 3872, 28690, 3872, 402, 0, 0, 876, 24092, 327840, 327840, 24092, 876, 0, 0, 2754, 114824, 6576382, 7603472, 6576382, 114824, 2754, 0, 0, 6348, 665056, 79156940, 320886256

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Table starts

.2.....0........0...........0............0.............0.............0

.0....10.......12..........66..........108...........402...........876

.0....12.......96.........788.........3872.........24092........114824

.0....66......788.......28690.......327840.......6576382......79156940

.0...108.....3872......327840......7603472.....320886256....7310971904

.0...402....24092.....6576382....320886256...34229033906.1674989985204

.0...876...114824....79156940...7310971904.1674989985204

.0..2754...665056..1344714010.253170988284

.0..6348..3211640.16864279960

.0.18122.17925968

.0.43660

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Sequence in context: A329039 A365437 A181502 * A063698 A348030 A287466

Adjacent sequences: A223151 A223152 A223153 * A223155 A223156 A223157

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 16 2013

STATUS

approved