A219467 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nX4 array

20, 211, 4838, 87083, 1306891, 17399442, 208345624, 2285009931, 23253970439, 221258732227, 1979908560027, 16752069750566, 134676183213583, 1033204910207865, 7592661274649504, 53621665489883610, 364978798507011324

Offset

1,1

Comments

Column 4 of A219471

Links

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

Example

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

Crossrefs

Sequence in context: A353892 A353881 A304023 * A121204 A128823 A141790

Adjacent sequences: A219464 A219465 A219466 * A219468 A219469 A219470

Keyword

nonn

Author

R. H. Hardin Nov 20 2012

Status

approved