A214904 Number of nXnXn triangular 0..6 arrays with every horizontal row nondecreasing and having the same average value

7, 16, 88, 1184, 31412, 1563440, 130431428, 17983769774, 3834925737542, 1241935634661854, 580437179573006186, 386026538656132081970, 351778685344619628965378, 434522760040678152959511554

Offset

1,1

Comments

Column 6 of A214906

Links

R. H. Hardin, Table of n, a(n) for n = 1..90

Example

Some solutions for n=4
.....5........4........2........3........2........4........3........4
....4.6......3.5......2.2......0.6......0.4......3.5......2.4......4.4
...5.5.5....0.6.6....0.2.4....0.4.5....2.2.2....3.3.6....2.3.4....3.4.5
..4.5.5.6..2.4.5.5..1.1.3.3..0.3.4.5..1.1.2.4..0.4.6.6..1.1.5.5..2.4.4.6

Crossrefs

Sequence in context: A309476 A192376 A363173 * A029498 A351531 A181777

Adjacent sequences: A214901 A214902 A214903 * A214905 A214906 A214907

Keyword

nonn

Author

R. H. Hardin Jul 29 2012

Status

approved