A223743
Number of nX1 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.
Original entry on oeis.org
3, 3, 9, 9, 39, 43, 195, 243, 1209, 1539, 8007, 10557, 56277, 75595, 409431, 558117, 3061119, 4218077, 23357223, 32466849, 181185495, 253624579, 1424453499, 2005655781, 11325017397, 16024596491, 90896159565, 129159081787
Offset: 1
Some solutions for n=6
..2....0....1....1....2....0....2....2....1....0....2....0....1....1....1....0
..1....1....1....1....1....1....2....0....0....2....1....2....2....0....2....1
..0....2....0....2....0....2....0....1....2....2....1....1....1....2....2....1
..0....2....2....0....2....0....0....1....1....2....1....2....2....2....0....1
..1....1....2....0....2....0....2....0....2....2....1....0....0....0....1....1
..2....0....0....2....1....1....2....2....0....0....2....1....2....1....2....0
A223744
Number of nX3 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.
Original entry on oeis.org
9, 9, 81, 81, 1521, 1849, 38025, 59049, 1461681, 2368521, 64112049, 111450249, 3167100729, 5714604025, 167633743761, 311494585689, 9370449532161, 17792173577929, 545559866271729, 1054096283988801, 32828183598395025
Offset: 1
Some solutions for n=6
..1..2..1....2..2..2....1..2..1....1..2..1....1..1..1....2..1..2....0..2..0
..0..2..0....2..1..2....1..0..1....1..0..1....1..1..1....0..2..0....2..2..2
..1..1..1....0..0..0....2..0..2....1..1..1....1..2..1....0..0..0....0..2..0
..1..1..1....0..2..0....0..0..0....1..1..1....1..0..1....0..0..0....0..2..0
..0..2..0....2..2..2....0..0..0....1..0..1....1..0..1....0..2..0....2..2..2
..1..2..1....2..1..2....2..2..2....1..2..1....1..2..1....2..1..2....0..2..0
A223745
Number of nX5 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.
Original entry on oeis.org
39, 39, 1521, 1521, 144495, 162583, 21793395, 30730023, 6934356117, 9808559487, 2895682234887, 4474602111861, 1576942337224917
Offset: 1
Some solutions for n=3
..2..2..1..2..2....2..2..1..2..2....2..0..2..0..2....0..0..2..0..0
..1..0..1..0..1....1..0..0..2..0....2..0..1..2..1....0..1..1..1..0
..2..2..1..2..2....2..2..1..2..2....2..0..2..0..2....0..0..2..0..0
A223746
Number of nX6 0..2 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.
Original entry on oeis.org
43, 43, 1849, 1849, 162583, 169219, 22836827, 28688507, 6482059897
Offset: 1
Some solutions for n=3
..0..2..1..1..2..0....2..0..2..2..0..2....2..0..0..0..0..2....2..1..2..2..1..2
..0..1..0..0..1..0....2..0..1..1..0..2....1..2..2..0..1..2....1..0..0..0..0..1
..0..2..1..1..2..0....2..0..2..2..0..2....2..0..0..0..0..2....2..1..2..2..1..2
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