The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A223045 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A223045

Number of nX2 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
(history; published version)

#4 by R. H. Hardin at Tue Mar 12 18:48:40 EDT 2013

STATUS

editing

approved

#3 by R. H. Hardin at Tue Mar 12 18:48:37 EDT 2013

LINKS

R. H. Hardin, <a href="/A223045/b223045.txt">Table of n, a(n) for n = 1..31</a>

#2 by R. H. Hardin at Tue Mar 12 18:48:24 EDT 2013

NAME

allocated for R. H. Hardin

Number of nX2 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

DATA

6, 20, 120, 536, 3378, 17362, 108534, 597935, 3721248, 21071310, 130311096, 750104699, 4613728254, 26815009916, 164248964064, 960731599727, 5866192543680, 34466973845193, 209936262159534, 1237576209559222

OFFSET

1,1

COMMENTS

Column 2 of A223048

EXAMPLE

Some solutions for n=3

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin Mar 12 2013

STATUS

approved

editing

#1 by R. H. Hardin at Tue Mar 12 18:45:56 EDT 2013

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved