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A094099
Number of divisor chains of length 2n+1 which are both cyclic and anchored.
4
1, 1, 1, 1, 4, 2, 4, 47, 6, 6, 462, 372, 1589, 20896
(list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
COMMENTS
A divisor chain of length n is an arrangement of 1..n such that each term is a divisor of the sum of the preceding terms.
LINKS
Table of n, a(n) for n=0..13.
CROSSREFS
Cf. A067957, A094096, A094098, A094099.
Sequence in context: A248251 A139809 A348640 * A107046 A267184 A377647
Adjacent sequences: A094096 A094097 A094098 * A094100 A094101 A094102
KEYWORD
nonn,more
AUTHOR
Christopher Landauer, May 04, 2004.
STATUS
approved

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Last modified November 7 07:33 EST 2024. Contains 377523 sequences.
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