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A223588
Number of nX4 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
1
16, 18, 44, 56, 212, 316, 1788, 2878, 18844, 32116, 221652, 389110, 2759924, 4941976, 35665572, 64789396, 473517820, 869692952, 6418702132, 11892204000, 88460921156, 165061640176, 1235762853852, 2319452444592, 17458919011636
OFFSET
1,1
COMMENTS
Column 4 of A223592
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0....1..0..1..1....1..0..0..1....1..0..1..1....0..0..1..0
..1..0..0..1....1..0..1..1....0..0..0..0....0..0..1..0....0..0..1..0
..0..0..0..0....1..0..1..1....1..0..0..1....1..0..1..1....0..0..1..0
CROSSREFS
Sequence in context: A335248 A308222 A278471 * A358423 A183401 A300142
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 22 2013
STATUS
approved