A219886 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array

21, 87, 410, 2645, 14536, 74998, 371384, 1780796, 8327951, 37770000, 165587776, 701557921, 2877746302, 11458190975, 44395384830, 167697083241, 618401792448, 2228478398270, 7854147511367

Offset

1,1

Comments

Row 5 of A219883

Links

Table of n, a(n) for n=1..19.

Example

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

Crossrefs

Sequence in context: A219850 A158540 A304514 * A211464 A268257 A223370

Adjacent sequences: A219883 A219884 A219885 * A219887 A219888 A219889

Keyword

nonn

Author

R. H. Hardin Nov 30 2012

Status

approved