A220150 Number of n X 5 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 5 array.

15, 88, 645, 4559, 34959, 279304, 2173203, 16032779, 111800304, 739040657, 4649261872, 27940861285, 160944594371, 891059955504, 4752920160872, 24475451373463, 121902117207744, 588193576732660, 2753698006392772

Offset

1,1

Comments

Column 5 of A220153.

Links

R. H. Hardin, Table of n, a(n) for n = 1..111

Example

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

Crossrefs

Cf. A220153.

Sequence in context: A232070 A219598 A241433 * A164541 A145789 A010822

Adjacent sequences: A220147 A220148 A220149 * A220151 A220152 A220153

Keyword

nonn

Author

R. H. Hardin Dec 06 2012

Status

approved