A222965 Number of n X 4 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.

6, 16, 96, 314, 1884, 7344, 46512, 199912, 1281096, 6018524, 38837844, 192182076, 1239097956, 6379184870, 40998506544, 217140146844, 1387598473608, 7510403679888, 47773334036628, 262699726452550, 1662636615068856

Offset: 1

Author

R. H. Hardin, Mar 10 2013

Keywords

• nonn
• more

Examples

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

Crossrefs

Column 3 of A222969.