A219474 Number of 4Xn 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 4Xn array

35, 239, 5040, 87083, 1227441, 14696377, 157191488, 1532762665, 13807624794, 116296337706, 924459750842, 6973773054426, 50113925911679, 344224992704591, 2267656840216326, 14372813464098494, 87897599949502791, 519959958984757538

Offset

1,1

Comments

Row 4 of A219471

Links

R. H. Hardin, Table of n, a(n) for n = 1..92

Example

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

Crossrefs

Sequence in context: A104474 A171471 A223648 * A220208 A068722 A255584

Adjacent sequences: A219471 A219472 A219473 * A219475 A219476 A219477

Keyword

nonn

Author

R. H. Hardin Nov 20 2012

Status

approved