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A269600 Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by one or less. 1
2, 9, 60, 572, 7030, 105892, 1886252, 38768412, 902743646, 23482784400, 674804472216, 21227322458468, 725465523386294, 26765145874993234, 1060182321437102136, 44874027105660248520, 2021234030434596074938 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A269606.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..193

EXAMPLE

Some solutions for n=6

..3. .2. .5. .1. .1. .3. .3. .1. .0. .6. .4. .5. .2. .3. .6. .4

..4. .2. .6. .2. .4. .5. .5. .5. .3. .4. .2. .6. .3. .5. .0. .2

..6. .0. .5. .0. .0. .6. .6. .4. .0. .2. .0. .2. .4. .1. .6. .0

..3. .0. .6. .1. .4. .5. .3. .1. .1. .5. .0. .3. .2. .4. .6. .5

..4. .3. .6. .6. .5. .3. .1. .3. .0. .0. .3. .5. .0. .6. .4. .3

..1. .0. .3. .2. .4. .1. .5. .5. .3. .6. .3. .0. .1. .4. .1. .2

CROSSREFS

Cf. A269606.

Sequence in context: A269530 A269672 A268205 * A269460 A207649 A289713

Adjacent sequences:  A269597 A269598 A269599 * A269601 A269602 A269603

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 01 2016

STATUS

approved

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Last modified October 24 10:40 EDT 2021. Contains 348225 sequences. (Running on oeis4.)