login
A269433
Number of length-n 0..6 arrays with no repeated value greater than the previous repeated value.
1
7, 49, 343, 2380, 16408, 112476, 767172, 5209554, 35236110, 237479970, 1595378190, 10686193980, 71386033740, 475694666700, 3162645548916, 20982275486907, 138930896958189, 918219765681883, 6058251819231325, 39906814296599320
OFFSET
1,1
COMMENTS
Column 6 of A269435.
LINKS
FORMULA
Empirical: a(n) = 42*a(n-1) -749*a(n-2) +7308*a(n-3) -41601*a(n-4) +133686*a(n-5) -198037*a(n-6) -2136*a(n-7) +198037*a(n-8) +133686*a(n-9) +41601*a(n-10) +7308*a(n-11) +749*a(n-12) +42*a(n-13) +a(n-14)
EXAMPLE
Some solutions for n=6
..0. .0. .0. .3. .5. .2. .5. .6. .6. .5. .3. .6. .0. .5. .6. .3
..4. .0. .1. .0. .4. .2. .5. .2. .4. .1. .6. .3. .4. .4. .3. .1
..6. .3. .6. .0. .0. .4. .0. .5. .0. .5. .0. .2. .3. .5. .3. .0
..5. .6. .4. .6. .5. .0. .1. .2. .3. .6. .0. .0. .4. .4. .3. .2
..4. .0. .5. .4. .0. .4. .3. .0. .2. .0. .4. .3. .6. .2. .5. .5
..4. .3. .6. .5. .5. .6. .2. .4. .3. .1. .3. .0. .3. .6. .2. .6
CROSSREFS
Cf. A269435.
Sequence in context: A057845 A269617 A269581 * A269688 A269492 A269774
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 26 2016
STATUS
approved