A219598 Number of 5Xn 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 5Xn array

15, 87, 705, 4350, 26006, 156964, 939006, 5466749, 30837420, 168947111, 901097968, 4680202369, 23651533225, 116192356397, 554663937245, 2572846819549, 11600123422679, 50863765123285, 217051630988778, 902189285684499

Offset

1,1

Comments

Row 5 of A219595

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

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

Crossrefs

Sequence in context: A302948 A230676 A232070 * A241433 A220150 A164541

Adjacent sequences: A219595 A219596 A219597 * A219599 A219600 A219601

Keyword

nonn

Author

R. H. Hardin Nov 23 2012

Status

approved