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 A067341 #15 Jan 10 2025 10:08:16 %S A067341 24,36,40,54,56,88,96,100,104,135,136,144,152,160,184,189,196,216,224, %T A067341 225,232,240,248,250,296,297,324,328,336,344,351,352,360,375,376,384, %U A067341 400,416,424,441,459,472,484,486,488,504,513,528,536,540,544,560,568 %N A067341 Number of prime factors divided by the number of distinct prime factors is an integer and n is neither squarefree, nor power of prime. %H A067341 Amiram Eldar, <a href="/A067341/b067341.txt">Table of n, a(n) for n = 1..10000</a> %F A067341 A001222(n)/A001221(n) is an integer, A001222(n)>A001221(n)>1. %t A067341 ff[x_] := Flatten[FactorInteger[x]] f1[x_] := Length[FactorInteger[x]] f2[x_] := Apply[Plus, Table[Part[ff[x], 2*w], {w, 1, f1[x]}]] Do[s=f2[n]/f1[n]; If[IntegerQ[s]&&Greater[s, 1]&&Greater[f1[n], 1], Print[n]], {n, 2, 10000}] %o A067341 (PARI) is(n)=my(f=factor(n)[, 2]); #f>1 && vecsum(f)%#f==0 && vecmax(f)>1 \\ _Charles R Greathouse IV_, Oct 15 2015 %Y A067341 Cf. A001221, A001222, A067340. %K A067341 nonn %O A067341 1,1 %A A067341 _Labos Elemer_, Jan 16 2002