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A219593 Number of nX6 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX6 array 1
21, 81, 1188, 14793, 156964, 1767430, 21435360, 259297241, 2992271478, 32522357305, 335372829196, 3312669542090, 31487964667940, 288434629481468, 2549339374347045, 21786411636714179, 180452978644995861 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A219595

LINKS

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

EXAMPLE

Some solutions for n=3

..2..1..1..1..0..0....0..0..0..0..0..0....1..1..0..0..0..0....1..0..0..0..0..0

..2..2..1..1..1..0....1..0..0..0..0..0....1..1..0..0..0..0....1..1..0..0..0..0

..2..2..2..1..1..2....2..2..0..0..0..0....1..0..0..0..0..1....1..1..1..1..1..1

CROSSREFS

Sequence in context: A135945 A158493 A159743 * A195961 A190023 A071397

Adjacent sequences:  A219590 A219591 A219592 * A219594 A219595 A219596

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 23 2012

STATUS

approved

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Last modified March 23 14:17 EDT 2019. Contains 321431 sequences. (Running on oeis4.)