login
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
OFFSET
1,1
COMMENTS
Column 4 of A219460
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 20 2012
STATUS
approved