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A205339 Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than 6 1
0, 6, 30, 277, 2370, 22297, 214724, 2133784, 21632020, 223143400, 2333651994, 24689732388, 263770658256, 2841616524516, 30835061022020, 336721385300276, 3697585562072924, 40805356360923728, 452314009660461816 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A205341

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

..3....1....5....3....6....2....5....2....3....5....5....3....3....3....3....5

..1....3....4....1....4....5....8....4....5....2....9....2....0....7....1....4

..5....9....8....0....2....0....7....3....0....3....8....7....6...10....4....9

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

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

CROSSREFS

Sequence in context: A051821 A099031 A066108 * A215288 A295611 A264641

Adjacent sequences:  A205336 A205337 A205338 * A205340 A205341 A205342

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 26 2012

STATUS

approved

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Last modified November 28 06:42 EST 2021. Contains 349401 sequences. (Running on oeis4.)