A219689 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array

15, 35, 269, 1688, 8964, 44736, 219216, 1062133, 5046678, 23361295, 105246826, 462379361, 1984693730, 8329188237, 34174571720, 137072090506, 537533392034, 2061741321158, 7738348853856, 28437341923159, 102381325106959

Offset

1,1

Comments

Row 5 of A219686

Links

R. H. Hardin, Table of n, a(n) for n = 1..100

Example

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

Crossrefs

Sequence in context: A107423 A027442 A208728 * A074891 A328213 A271733

Adjacent sequences: A219686 A219687 A219688 * A219690 A219691 A219692

Keyword

nonn

Author

R. H. Hardin Nov 25 2012

Status

approved