A219935 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array

20, 196, 2070, 21512, 224794, 2225355, 20434119, 175334420, 1420391511, 10944254668, 80614381602, 569751343450, 3874457650832, 25407226592596, 160974645721734, 987110279457981, 5867881503628732, 33865515790471949

Offset

1,1

Comments

Column 4 of A219939

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A338778 A375803 A343242 * A191299 A027716 A126901

Adjacent sequences: A219932 A219933 A219934 * A219936 A219937 A219938

Keyword

nonn

Author

R. H. Hardin Dec 01 2012

Status

approved