A219918 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array

15, 21, 155, 819, 3800, 16159, 65802, 262840, 1033491, 3983613, 14992543, 55035788, 197291298, 692007090, 2378947973, 8024418500, 26575612774, 86454342449, 276372974756, 868539256771, 2684471740896, 8163897110646, 24439762845296

Offset

1,1

Comments

Row 5 of A219915

Links

R. H. Hardin, Table of n, a(n) for n = 1..84

Example

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

Crossrefs

Sequence in context: A274084 A350098 A334118 * A084931 A265153 A219214

Adjacent sequences: A219915 A219916 A219917 * A219919 A219920 A219921

Keyword

nonn

Author

R. H. Hardin Dec 01 2012

Status

approved