A239540 Number of (6+1)X(n+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order

128, 1584, 98304, 3785280, 165336096, 6976042240, 297124637920, 12622717987696, 536625406147360, 22809020631128424, 969537615294392640, 41211319597204417184, 1751741668044306860648, 74460018786142833463792

Offset

1,1

Comments

Row 6 of A239537

Links

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

R. H. Hardin, Empirical recurrence of order 85

Formula

Empirical recurrence of order 85 (see link above)

Example

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

Crossrefs

Sequence in context: A200842 A187706 A202961 * A327772 A306746 A332545

Adjacent sequences: A239537 A239538 A239539 * A239541 A239542 A239543

Keyword

nonn

Author

R. H. Hardin, Mar 21 2014

Status

approved