A267225 Number of length-n 0..n arrays with no following elements greater than or equal to the first repeated value.

2, 9, 54, 470, 5375, 76237, 1291052, 25415028, 570177387, 14358031083, 400970609974, 12297528376718, 410864493836407, 14852560618944921, 577574220388332600, 24040616483779262824, 1066403330800172463507

Offset: 1

Author

R. H. Hardin, Jan 12 2016

Keywords

• nonn

Comments

Diagonal of A267232.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..206

Crossrefs

Cf. A267232.