A209017 Number of nX6 0..3 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it

972, 1901964, 3707858104, 7224768704460, 14081479775124768, 27444816617702590210, 53490209804089514438574, 104252853354306374638934760, 203189693440653459494447382012

Offset

1,1

Comments

Column 6 of A209019

Links

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

Example

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

Crossrefs

Sequence in context: A183359 A203030 A209045 * A232409 A275060 A251837

Adjacent sequences: A209014 A209015 A209016 * A209018 A209019 A209020

Keyword

nonn

Author

R. H. Hardin Mar 04 2012

Status

approved