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A267225 Number of length-n 0..n arrays with no following elements greater than or equal to the first repeated value. 1
2, 9, 54, 470, 5375, 76237, 1291052, 25415028, 570177387, 14358031083, 400970609974, 12297528376718, 410864493836407, 14852560618944921, 577574220388332600, 24040616483779262824, 1066403330800172463507 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A267232.

LINKS

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

EXAMPLE

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

CROSSREFS

Cf. A267232.

Sequence in context: A064151 A075679 A001757 * A078455 A036074 A231172

Adjacent sequences:  A267222 A267223 A267224 * A267226 A267227 A267228

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2016

STATUS

approved

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Last modified August 4 05:02 EDT 2021. Contains 346442 sequences. (Running on oeis4.)