cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A099318 Smallest k>1 such that k*(n-th minimal number) is also a minimal number.

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%I A099318 #17 Aug 31 2019 22:26:45
%S A099318 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,
%T A099318 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,
%U A099318 3,3,4,4,5,3,2,3,5,2,2,4,3,4,2,4,3,4,2
%N A099318 Smallest k>1 such that k*(n-th minimal number) is also a minimal number.
%C A099318 A minimal number is the smallest number with a given number of divisors, see A007416.
%C A099318 Is a(n) in A000961? - _David A. Corneth_, Aug 31 2019
%H A099318 David A. Corneth, <a href="/A099318/b099318.txt">Table of n, a(n) for n = 1..10000</a> (first 844 terms from Amiram Eldar)
%F A099318 a(n)*A007416(n) = A007416(m) for some m.
%e A099318 A007416(38) = A005179(64) = 7560 = 2^3*3^3*5*7;
%Y A099318 Cf. A000961, A005179, A007416.
%K A099318 nonn
%O A099318 1,1
%A A099318 _Reinhard Zumkeller_, Oct 12 2004
%E A099318 More terms from _Amiram Eldar_, Aug 31 2019