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A220047
Number of 4Xn 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 nonincreasing columns, 0..3 4Xn array
1
35, 181, 927, 8337, 53266, 313386, 1746346, 9367123, 48895966, 246045686, 1193350361, 5576247662, 25174878509, 110159988971, 468565872713, 1941667776148, 7851280414436, 31016460919525, 119827415529921
OFFSET
1,1
COMMENTS
Row 4 of A220044
LINKS
EXAMPLE
Some solutions for n=3
..1..1..1....2..0..0....1..0..0....1..0..1....2..2..2....1..1..1....1..0..1
..1..1..1....2..0..2....1..0..1....1..0..0....2..2..2....1..1..1....1..0..0
..2..2..3....1..2..1....1..0..1....2..0..2....2..0..2....2..1..2....3..0..3
..3..2..3....1..1..1....3..0..0....3..0..0....2..0..0....2..2..2....3..3..3
CROSSREFS
Sequence in context: A033851 A219825 A194716 * A101954 A220201 A005937
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 03 2012
STATUS
approved