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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 0
21, 87, 410, 2645, 14536, 74998, 371384, 1780796, 8327951, 37770000, 165587776, 701557921, 2877746302, 11458190975, 44395384830, 167697083241, 618401792448, 2228478398270, 7854147511367 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 9 10:46 EDT 2021. Contains 343732 sequences. (Running on oeis4.)