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A219935 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array 1
20, 196, 2070, 21512, 224794, 2225355, 20434119, 175334420, 1420391511, 10944254668, 80614381602, 569751343450, 3874457650832, 25407226592596, 160974645721734, 987110279457981, 5867881503628732, 33865515790471949 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A219939

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..2..1..0..2....2..2..0..1....0..1..0..0....1..0..1..1....3..0..0..0

..3..1..0..0....3..3..0..0....0..0..0..1....1..0..0..0....3..1..1..0

..3..3..2..1....3..3..2..2....3..0..0..0....2..2..0..0....3..3..1..1

CROSSREFS

Sequence in context: A232224 A338778 A343242 * A191299 A027716 A126901

Adjacent sequences:  A219932 A219933 A219934 * A219936 A219937 A219938

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 01 2012

STATUS

approved

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Last modified July 6 12:26 EDT 2022. Contains 355110 sequences. (Running on oeis4.)