A220208 Number of 5 X n arrays of the minimum value of corresponding elements and their horizontal, vertical, or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 5Xn array.

35, 245, 3916, 44886, 527350, 6316576, 70265746, 722552145, 7039442376, 66318454223, 607801474502, 5404693452033, 46525124902547, 388164690519967, 3148256654880231, 24893160880333017, 192249383100654432, 1451962162901032263, 10734863056274157702, 77774698458093387876

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..25

Example

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

Crossrefs

Row 5 of A220204.

Sequence in context: A171471 A223648 A219474 * A068722 A255584 A113941

Adjacent sequences: A220205 A220206 A220207 * A220209 A220210 A220211

Keyword

nonn

Author

R. H. Hardin, Dec 07 2012

Status

approved