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A219456 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nX4 array 1
20, 26, 498, 3422, 27967, 197308, 1324860, 8405212, 51417327, 303703636, 1731421125, 9525742325, 50654533963, 260914306516, 1304341448963, 6337774514024, 29964888604613, 137989085373438, 619551753355165 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A219460

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..47

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A280307 A101070 A219805 * A248787 A070717 A114813

Adjacent sequences:  A219453 A219454 A219455 * A219457 A219458 A219459

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 20 2012

STATUS

approved

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Last modified October 19 22:05 EDT 2021. Contains 348095 sequences. (Running on oeis4.)