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A269637 Number of length-n 0..5 arrays with no repeated value differing from the previous repeated value by other than plus two or minus 1. 1
6, 36, 210, 1209, 6876, 38738, 216528, 1202353, 6639294, 36486190, 199677806, 1088813760, 5918190122, 32077034918, 173421804818, 935474530883, 5035906367464, 27059901888584, 145161762258568, 777537033208493 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A269640.
LINKS
FORMULA
Empirical: a(n) = 29*a(n-1) -330*a(n-2) +1730*a(n-3) -2815*a(n-4) -9981*a(n-5) +36088*a(n-6) +31192*a(n-7) -161403*a(n-8) -158561*a(n-9) +291970*a(n-10)
EXAMPLE
Some solutions for n=6
..5. .1. .0. .3. .2. .3. .0. .2. .0. .3. .3. .2. .5. .2. .4. .2
..2. .4. .5. .4. .4. .0. .0. .3. .2. .2. .1. .0. .5. .0. .1. .3
..5. .4. .2. .5. .3. .2. .2. .4. .2. .4. .4. .5. .0. .2. .0. .0
..2. .5. .4. .4. .5. .3. .4. .3. .5. .5. .0. .3. .3. .5. .5. .3
..3. .4. .5. .5. .2. .5. .2. .0. .3. .5. .0. .4. .4. .4. .3. .2
..3. .3. .4. .3. .1. .3. .2. .1. .2. .0. .5. .2. .2. .3. .4. .5
CROSSREFS
Cf. A269640.
Sequence in context: A354231 A014336 A268941 * A269534 A269675 A269406
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 02 2016
STATUS
approved

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Last modified June 14 15:00 EDT 2024. Contains 373400 sequences. (Running on oeis4.)