A233103 Number of 6Xn 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order.

528, 25211, 2920145, 304926626, 33113065637, 3584186808548, 388985760511817, 42219381207630485, 4583504040235930607, 497623532490414737372, 54027709864321432349219, 5865910777448530290474011

Offset

1,1

Comments

Row 6 of A233098

Links

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

R. H. Hardin, Empirical recurrence of order 87

Formula

Empirical recurrence of order 87 (see link above)

Example

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

Crossrefs

Sequence in context: A282096 A386785 A223253 * A223244 A059465 A071236

Adjacent sequences: A233100 A233101 A233102 * A233104 A233105 A233106

Keyword

nonn

Author

R. H. Hardin, Dec 04 2013

Status

approved