A223590 Number of n X 6 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.

64, 66, 296, 316, 2008, 2352, 31192, 39542, 804584, 1161184, 27446296, 42224950, 1062052936, 1702711152, 44370512696, 73241252508, 1957264012760, 3302740654392, 89994635023384, 154522299452260, 4276701436279160

Offset

1,1

Comments

Column 6 of A223592.

Links

Table of n, a(n) for n=1..21.

Example

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

Crossrefs

Cf. A223592.

Sequence in context: A194769 A217846 A135124 * A070931 A095533 A044864

Adjacent sequences: A223587 A223588 A223589 * A223591 A223592 A223593

Keyword

nonn

Author

R. H. Hardin, Mar 22 2013

Status

approved