A222844 Number of (n+1)X3 0..2 arrays with every row and column least squares fitting to a positive slope straight line

3, 27, 576, 4896, 63455, 531864, 5916807, 49852089, 513363015, 4356708120, 43202639844, 369377896383, 3577597178939, 30801614053968, 293760174674232, 2545094117389824, 24014459778781840, 209083911110141112

Offset

1,1

Comments

Column 2 of A222847

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

Some solutions for n=3
..0..0..1....0..0..1....0..0..1....0..0..2....0..0..1....0..1..2....0..0..1
..0..0..1....1..1..2....0..1..2....0..1..1....0..1..2....0..2..1....0..1..1
..1..0..2....0..2..2....1..1..2....0..0..2....0..2..1....1..1..2....1..0..2
..1..2..2....1..1..2....1..1..2....1..1..2....1..2..2....1..2..2....0..2..2

Crossrefs

Sequence in context: A089506 A370578 A062496 * A219345 A185037 A185237

Adjacent sequences: A222841 A222842 A222843 * A222845 A222846 A222847

Keyword

nonn

Author

R. H. Hardin Mar 07 2013

Status

approved