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A269672 Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by other than plus or minus one modulo n+1. 1
2, 9, 60, 570, 6918, 102606, 1799256, 36430614, 836599530, 21486777246, 610316761236, 18996711425718, 643003101276270, 23514920033329950, 923967843215031600, 38820647241658051158, 1736732998701525266514 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A269678.
LINKS
EXAMPLE
Some solutions for n=6
..5. .1. .4. .5. .6. .3. .6. .0. .4. .5. .2. .2. .5. .4. .2. .4
..6. .1. .3. .1. .3. .4. .2. .4. .2. .3. .3. .3. .2. .5. .5. .5
..0. .4. .0. .2. .3. .6. .3. .6. .3. .6. .1. .5. .5. .4. .6. .1
..2. .1. .0. .1. .0. .5. .2. .3. .4. .6. .6. .1. .4. .3. .2. .4
..5. .2. .5. .0. .4. .1. .3. .4. .5. .2. .3. .6. .2. .2. .1. .4
..3. .5. .1. .6. .2. .5. .1. .0. .2. .4. .6. .0. .4. .3. .3. .6
CROSSREFS
Cf. A269678.
Sequence in context: A268937 A269634 A269530 * A268205 A269600 A269460
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 03 2016
STATUS
approved

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Last modified May 27 11:00 EDT 2024. Contains 372858 sequences. (Running on oeis4.)