A209046 Number of nX7 0..3 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it

2916, 15778340, 86878417604, 478881915072688, 2640002203816927226, 14554067523333615991960, 80235179157233210417254036, 442328880747673272994524595152, 2438516891360121789946284774426192

Offset

1,1

Comments

Column 7 of A209047

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..3..0..1..0..3..0....2..0..3..0..3..2..3....3..2..0..1..0..3..0
..3..2..2..0..1..0..1....0..1..3..0..3..2..1....1..3..2..2..2..1..2
..1..0..3..2..1..2..3....1..2..2..3..0..0..1....2..0..2..3..1..3..1
..3..0..3..2..2..0..1....0..3..3..0..3..1..3....0..3..3..0..2..1..3

Crossrefs

Sequence in context: A344474 A203376 A183360 * A209018 A186562 A157935

Adjacent sequences: A209043 A209044 A209045 * A209047 A209048 A209049

Keyword

nonn

Author

R. H. Hardin Mar 04 2012

Status

approved