A219592 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX5 array

15, 55, 550, 4152, 26006, 164075, 1093496, 7362866, 47724022, 292277921, 1695340197, 9384561666, 49848123324, 254860709784, 1257031665966, 5994561288262, 27703365847356, 124331694874481, 542842646444008

Offset

1,1

Comments

Column 5 of A219595

Links

R. H. Hardin, Table of n, a(n) for n = 1..25

Example

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

Crossrefs

Sequence in context: A141839 A080698 A082235 * A104724 A106659 A119136

Adjacent sequences: A219589 A219590 A219591 * A219593 A219594 A219595

Keyword

nonn

Author

R. H. Hardin Nov 23 2012

Status

approved