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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
OFFSET
1,1
COMMENTS
Column 4 of A219828
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2012
STATUS
approved