A267464 Number of length-n 0..n arrays with no following elements larger than the first repeated value.

2, 9, 58, 515, 5921, 83972, 1418740, 27838701, 622347697, 15615978774, 434592601906, 13284763035843, 442468160695185, 15948347001674856, 618492693332510536, 25678060436644303705, 1136319246969590031009

Offset: 1

Author

R. H. Hardin, Jan 15 2016

Keywords

• nonn

Comments

Diagonal of A267471.

Examples

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

Links

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

Crossrefs

Cf. A267471.