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A269577
Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by more than one.
1
2, 9, 64, 613, 7456, 110339, 1927694, 38870827, 889023812, 22746429095, 643840268116, 19976512909091, 674221665067452, 24592350910504629, 964021028783633958, 40416610599130990985, 1804600905171811949948
OFFSET
1,1
COMMENTS
Diagonal of A269583.
LINKS
EXAMPLE
Some solutions for n=6
..1. .3. .3. .4. .6. .1. .3. .4. .0. .4. .5. .3. .0. .1. .1. .1
..2. .2. .0. .5. .0. .3. .1. .6. .6. .2. .0. .2. .4. .3. .3. .1
..3. .4. .4. .0. .0. .1. .5. .0. .3. .3. .3. .1. .1. .4. .1. .3
..1. .0. .0. .3. .1. .4. .5. .1. .3. .4. .1. .4. .0. .3. .3. .4
..0. .5. .0. .6. .1. .3. .6. .6. .3. .1. .5. .1. .6. .6. .2. .5
..1. .4. .5. .3. .3. .0. .1. .3. .0. .6. .4. .6. .0. .5. .6. .3
CROSSREFS
Cf. A269583.
Sequence in context: A113882 A059281 A269612 * A268104 A269683 A331658
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 01 2016
STATUS
approved