A219593 Number of nX6 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX6 array

21, 81, 1188, 14793, 156964, 1767430, 21435360, 259297241, 2992271478, 32522357305, 335372829196, 3312669542090, 31487964667940, 288434629481468, 2549339374347045, 21786411636714179, 180452978644995861

Offset

1,1

Comments

Column 6 of A219595

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

Example

Some solutions for n=3
..2..1..1..1..0..0....0..0..0..0..0..0....1..1..0..0..0..0....1..0..0..0..0..0
..2..2..1..1..1..0....1..0..0..0..0..0....1..1..0..0..0..0....1..1..0..0..0..0
..2..2..2..1..1..2....2..2..0..0..0..0....1..0..0..0..0..1....1..1..1..1..1..1

Crossrefs

Sequence in context: A135945 A158493 A159743 * A195961 A359024 A190023

Adjacent sequences: A219590 A219591 A219592 * A219594 A219595 A219596

Keyword

nonn

Author

R. H. Hardin Nov 23 2012

Status

approved