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A219710 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array 1
20, 125, 1751, 23506, 245205, 2326019, 21036433, 180509639, 1458287494, 11082376729, 79456239834, 539674743558, 3488011587815, 21545098178172, 127698505774282, 728875173290252, 4019100286657877, 21469186347860585 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A219714

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A250648 A250421 A073968 * A263229 A125330 A126488

Adjacent sequences:  A219707 A219708 A219709 * A219711 A219712 A219713

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 26 2012

STATUS

approved

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Last modified September 22 22:38 EDT 2021. Contains 347609 sequences. (Running on oeis4.)