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A212534 Number of nondecreasing sequences of n 1..6 integers with every element dividing the sequence sum 1
6, 6, 11, 17, 30, 40, 69, 91, 130, 166, 224, 296, 439, 606, 841, 1080, 1352, 1594, 1877, 2112, 2397, 2672, 3055, 3500, 4159, 4932, 5966, 7144, 8568, 10073, 11781, 13488, 15367, 17256, 19348, 21511, 23999, 26623, 29660, 32913, 36620, 40561, 45024, 49719 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A212536

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +a(n-2) -a(n-5) -a(n-6) -a(n-7) +a(n-8) +a(n-9) +a(n-10) -a(n-13) -a(n-14) +a(n-15) +a(n-60) -a(n-61) -a(n-62) +a(n-65) +a(n-66) +a(n-67) -a(n-68) -a(n-69) -a(n-70) +a(n-73) +a(n-74) -a(n-75)

EXAMPLE

Some solutions for n=8

..1....2....3....2....1....2....1....2....1....2....1....2....2....1....1....1

..1....2....3....2....1....2....3....2....1....4....1....2....2....1....1....1

..1....3....3....2....1....3....3....2....1....4....2....2....2....2....2....2

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

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

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

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

..6....4....3....6....5....6....5....3....3....6....6....6....6....4....6....6

CROSSREFS

Sequence in context: A095899 A163757 A109538 * A173319 A040031 A205695

Adjacent sequences:  A212531 A212532 A212533 * A212535 A212536 A212537

KEYWORD

nonn

AUTHOR

R. H. Hardin May 20 2012

STATUS

approved

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Last modified September 21 12:35 EDT 2019. Contains 327253 sequences. (Running on oeis4.)