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A171784 Fourth smallest divisor of smallest number having exactly n divisors. 2

%I #11 Apr 06 2021 15:09:15

%S 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,

%T 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,

%U 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

%N Fourth smallest divisor of smallest number having exactly n divisors.

%C Fourth column of triangle in A081532. - _N. J. A. Sloane_, Oct 12 2010.

%H David A. Corneth, <a href="/A171784/b171784.txt">Table of n, a(n) for n = 4..10003</a> (first 1997 terms from Antti Karttunen)

%e a(5) = 8 because divisors of 16 are 1,2,4,8,16.

%Y Cf. A005179, A081532, A171783.

%K nonn

%O 4,1

%A _J. Lowell_, Oct 12 2010

%E More terms from _R. J. Mathar_, Oct 13 2010

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)