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A219798
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 nonincreasing columns, 0..3 nX4 array
1
20, 21, 283, 1605, 9817, 52704, 279458, 1485408, 7898483, 41071878, 205411559, 983354244, 4524348747, 20138886182, 87167200173, 367779504535, 1513868192185, 6081577731882, 23858481057510, 91492233259175, 343337879987807
OFFSET
1,1
COMMENTS
Column 4 of A219802
LINKS
EXAMPLE
Some solutions for n=3
..3..3..0..0....1..1..0..0....3..0..0..0....2..2..2..2....2..1..1..1
..3..3..0..0....1..1..0..0....3..0..0..0....2..2..2..2....0..0..0..1
..3..3..0..0....2..2..3..3....3..3..2..2....3..3..3..3....0..0..0..3
CROSSREFS
Sequence in context: A041832 A082260 A041834 * A063013 A028931 A063012
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2012
STATUS
approved