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 A190316 #19 Mar 08 2022 08:24:21 %S A190316 2042040,2282280,2762760,2984520,3483480,3527160,3612840,3723720, %T A190316 4037880,4269720,4444440,4555320,4594590,4772040,4869480,4924920, %U A190316 5091240,5135130,5165160,5383560,5442360,5542680,5645640,5754840,5811960,6016920,6163080,6216210 %N A190316 Numbers with prime factorization pqrstuv^3. %H A190316 T. D. Noe, <a href="/A190316/b190316.txt">Table of n, a(n) for n = 1..1000</a> %H A190316 Will Nicholes, <a href="http://willnicholes.com/math/primesiglist.htm">Prime Signatures</a> %t A190316 f[n_]:=Sort[Last/@FactorInteger[n]]=={1,1,1,1,1,1,3}; Select[Range[3000000],f] %o A190316 (PARI) isA190316(n)=vecsort(factor(n)[,2])==[1, 1, 1, 1, 1, 1, 3]~ \\ _Charles R Greathouse IV_, May 10 2011 %Y A190316 Cf. A190390, A190391. %K A190316 nonn,easy %O A190316 1,1 %A A190316 _Vladimir Joseph Stephan Orlovsky_, May 10 2011 %E A190316 Extended by _T. D. Noe_, May 10 2011