A220763 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..3 3Xn array

64, 192, 4328, 24934, 354706, 2715804, 31659166, 277952034, 2954256382, 27594850862, 281218334508, 2702246506854, 27016733242156, 262977482298808, 2606430063309362, 25520149513177148, 251935677082462500

Offset

1,1

Comments

Row 3 of A220761

Links

R. H. Hardin, Table of n, a(n) for n = 1..65

Example

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

Crossrefs

Sequence in context: A195089 A336596 A175166 * A030028 A320338 A250135

Adjacent sequences: A220760 A220761 A220762 * A220764 A220765 A220766

Keyword

nonn

Author

R. H. Hardin Dec 19 2012

Status

approved