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A219824 Number of nX4 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 columns, 0..3 nX4 array 1
20, 87, 2106, 29403, 372346, 4032736, 40480756, 386360710, 3509148085, 30177584694, 245663212570, 1900712282547, 14049961503902, 99670904365762, 680920280827864, 4492073696729197, 28684119753996201, 177665858054263184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A219828

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..187

EXAMPLE

Some solutions for n=3

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

..0..0..0..0....0..0..0..0....0..0..0..0....1..0..0..0....1..0..0..0

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

CROSSREFS

Sequence in context: A154077 A027849 A243645 * A339343 A306987 A249983

Adjacent sequences:  A219821 A219822 A219823 * A219825 A219826 A219827

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 28 2012

STATUS

approved

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Last modified January 26 14:30 EST 2021. Contains 340439 sequences. (Running on oeis4.)