A222967 Number of n X 6 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope.

28, 185, 5180, 53292, 1492176, 21852384, 687269268, 11877013537, 379255412732, 7601814965106, 242873494106544

Offset: 1

Author

R. H. Hardin, Mar 10 2013

Keywords

• nonn
• more

Examples

			Some solutions for n=3:
  0 0 0 0 1 1    0 0 1 0 1 0    0 0 1 1 1 0    0 0 0 0 0 1
  0 1 0 1 0 1    0 1 0 1 0 1    0 0 1 1 0 1    0 1 0 0 1 1
  0 1 1 1 1 1    0 0 1 1 1 0    0 0 1 1 1 0    1 0 0 1 0 1
		

Crossrefs

Column 5 of A222969.