A219800 Number of n X 6 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 n X 6 array.

56, 68, 2949, 43246, 794035, 12642165, 204182570, 3262185744, 51923512311, 803742526337, 11939403815901, 169713252987334, 2325931123371691, 31028886418348831

Offset

1,1

Comments

Column 6 of A219802.

Links

Table of n, a(n) for n=1..14.

Example

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

Crossrefs

Cf. A219802.

Sequence in context: A256515 A238227 A216855 * A050440 A043158 A039335

Adjacent sequences: A219797 A219798 A219799 * A219801 A219802 A219803

Keyword

nonn

Author

R. H. Hardin, Nov 28 2012

Status

approved