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A099318 Smallest k>1 such that k*(n-th minimal number) is also a minimal number. 2
2, 2, 3, 2, 2, 3, 2, 4, 3, 2, 3, 2, 4, 2, 3, 3, 2, 5, 4, 2, 4, 3, 3, 2, 4, 3, 2, 5, 3, 4, 3, 2, 5, 4, 4, 3, 2, 4, 2, 3, 7, 3, 3, 3, 2, 5, 2, 4, 5, 4, 4, 4, 5, 2, 2, 3, 3, 3, 4, 2, 7, 3, 2, 7, 2, 2, 5, 5, 3, 3, 4, 4, 5, 3, 2, 3, 5, 2, 2, 4, 3, 4, 2, 4, 3, 4, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
A minimal number is the smallest number with a given number of divisors, see A007416.
Is a(n) in A000961? - David A. Corneth, Aug 31 2019
LINKS
David A. Corneth, Table of n, a(n) for n = 1..10000 (first 844 terms from Amiram Eldar)
FORMULA
a(n)*A007416(n) = A007416(m) for some m.
EXAMPLE
A007416(38) = A005179(64) = 7560 = 2^3*3^3*5*7;
CROSSREFS
Sequence in context: A262945 A309674 A270516 * A187128 A255911 A091382
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 12 2004
EXTENSIONS
More terms from Amiram Eldar, Aug 31 2019
STATUS
approved

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Last modified June 16 11:53 EDT 2024. Contains 373429 sequences. (Running on oeis4.)