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A171784 Fourth smallest divisor of smallest number having exactly n divisors. 2
6, 8, 4, 8, 4, 4, 4, 8, 4, 8, 4, 4, 4, 8, 4, 8, 4, 4, 4, 8, 4, 4, 4, 4, 4, 8, 4, 8, 4, 4, 4, 4, 4, 8, 4, 4, 4, 8, 4, 8, 4, 4, 4, 8, 4, 4, 4, 4, 4, 8, 4, 4, 4, 4, 4, 8, 4, 8, 4, 4, 4, 4, 4, 8, 4, 4, 4, 8, 4, 8, 4, 4, 4, 4, 4, 8, 4, 4, 4, 8, 4, 4, 4, 4, 4, 8, 4, 4, 4, 4, 4, 4, 4, 8, 4, 4, 4, 8, 4, 8, 4, 4, 4, 8, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET
4,1
COMMENTS
Fourth column of triangle in A081532. - N. J. A. Sloane, Oct 12 2010.
LINKS
David A. Corneth, Table of n, a(n) for n = 4..10003 (first 1997 terms from Antti Karttunen)
EXAMPLE
a(5) = 8 because divisors of 16 are 1,2,4,8,16.
CROSSREFS
Cf. A005179, A081532, A171783.
Sequence in context: A195492 A269802 A269991 * A200133 A021150 A347407
Adjacent sequences: A171781 A171782 A171783 * A171785 A171786 A171787
KEYWORD
nonn
AUTHOR
J. Lowell, Oct 12 2010
EXTENSIONS
More terms from R. J. Mathar, Oct 13 2010
STATUS
approved

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Last modified May 15 17:02 EDT 2024. Contains 372548 sequences. (Running on oeis4.)