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.
%I A329379 #5 Nov 15 2019 21:33:18 %S A329379 1,2,1,4,1,6,1,8,1,2,1,12,1,2,1,16,1,6,1,4,1,2,1,24,1,2,1,4,1,6,1,32, %T A329379 1,2,1,36,1,2,1,8,1,6,1,4,1,2,1,48,1,2,1,4,1,6,1,8,1,2,1,12,1,2,1,64, %U A329379 1,6,1,4,1,2,1,24,1,2,1,4,1,6,1,16,1,2,1,12,1,2,1,8,1,6,1,4,1,2,1,96,1,2,1,4,1,6,1,8,1 %N A329379 a(n) = n/A093411(n), where A093411(n) is obtained by repeatedly dividing n by the largest factorial that divides it until an odd number is reached. %H A329379 Antti Karttunen, <a href="/A329379/b329379.txt">Table of n, a(n) for n = 1..40319</a> %F A329379 a(n) = n/A093411(n). %o A329379 (PARI) %o A329379 A076934(n) = for(k=2, oo , if(n%k, return(n), n /= k)); %o A329379 A093411(n) = if(!n,n,my(u=A076934(n)); if(n%2, return(n), return(A093411(u)))); %o A329379 A329379(n) = (n/A093411(n)); %Y A329379 Cf. A000142, A076934, A093411. %Y A329379 Cf. also A328479. %K A329379 nonn %O A329379 1,2 %A A329379 _Antti Karttunen_, Nov 15 2019