A265875 Number of nX3 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than itself.

5, 137, 1330, 30363, 544092, 9831410, 185555660, 3446658882, 64319089694, 1199098819080, 22364131445571, 417190960294802, 7779917972805386, 145112215710497400, 2706516080784304796, 50479139484195509572

Offset

1,1

Comments

Column 3 of A265878.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..1..2....0..4..0....1..4..0....2..1..1....0..4..1....0..3..1....0..0..3
..4..1..3....2..2..3....0..2..4....1..0..2....2..0..3....2..5..0....4..1..1
..0..6..0....0..6..0....3..3..0....2..2..4....2..0..3....1..5..0....2..6..0
..0..3..0....0..0..0....0..4..1....3..0..0....3..2..0....0..3..1....1..0..0

Crossrefs

Cf. A265878.

Sequence in context: A216337 A142294 A279307 * A248523 A159546 A339566

Adjacent sequences: A265872 A265873 A265874 * A265876 A265877 A265878

Keyword

nonn

Author

R. H. Hardin, Dec 17 2015

Status

approved