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A223586
Number of n X n 0..1 arrays with every row having the same least squares slope fit to a straight line, and every column the same least squares slope fit to a straight line, with a single point array taken as having zero slope
0
2, 6, 32, 56, 1664, 2352, 1123232, 929038, 9405893184
OFFSET
1,1
COMMENTS
Diagonal of A223592
EXAMPLE
Some solutions for n=3
..1..1..1....0..1..0....0..1..0....0..0..0....1..0..0....1..0..0....0..0..0
..1..1..1....0..0..0....1..1..1....1..0..1....1..1..0....1..0..0....1..0..1
..1..1..1....0..1..0....0..1..0....0..0..0....1..0..0....1..0..0....1..1..1
CROSSREFS
Sequence in context: A190958 A340232 A109243 * A212762 A108327 A188573
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 22 2013
STATUS
approved