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 A190292 #9 Aug 25 2016 23:05:03 %S A190292 6720,10560,12480,14784,16320,17472,18240,22080,22848,24640,25536, %T A190292 27456,27840,29120,29760,30912,35520,35904,38080,38976,39360,40128, %U A190292 41280,41664,42432,42560,45120,45760,47424,48576,49728,50880,51030,51520 %N A190292 Numbers with prime factorization pqrs^6. %H A190292 T. D. Noe, <a href="/A190292/b190292.txt">Table of n, a(n) for n = 1..1000</a> %H A190292 Will Nicholes,<a href="http://willnicholes.com/math/primesiglist.htm">Prime Signatures</a> %t A190292 f[n_]:=Sort[Last/@FactorInteger[n]]=={1,1,1,6};Select[Range[100000],f] %o A190292 (PARI) list(lim)=my(v=List(),t1,t2,t3); forprime(p=2,sqrtnint(lim\30, 6), t1=p^6; forprime(q=2,lim\(6*t1), if(q==p, next); t2=q*t1; forprime(r=2,lim\(2*t2), if(r==p || r==q, next); t3=r*t2; forprime(s=2,lim\t3, if(s==p || s==q || s==r, next); listput(v, t3*s))))); Set(v) \\ _Charles R Greathouse IV_, Aug 25 2016 %Y A190292 Cf. A190115, A162144. %K A190292 nonn %O A190292 1,1 %A A190292 _Vladimir Joseph Stephan Orlovsky_, May 07 2011