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 A097205 #5 Apr 11 2013 11:23:04 %S A097205 72,729,30375,750141,235782657,3502727631,634465620819,7971951402153, %T A097205 1145440056788109,1673826273552131487,18401108148695065077, %U A097205 22808230685096689428039,2513755383310987769681163,26098726706637459430889889,2760530473190044863847909701 %N A097205 Numbers of the form 3^p * p^3 for p prime. %t A097205 3^# #^3&/@Prime[Range[20]] (* _Harvey P. Dale_, Apr 11 2013 *) %o A097205 (PARI) forprime(p=2,41,print1(p^3*3^p,",")) %K A097205 nonn %O A097205 1,1 %A A097205 _Parthasarathy Nambi_, Sep 16 2004 %E A097205 Edited and extended by _Klaus Brockhaus_, Sep 18 2004 %E A097205 More terms from _Harvey P. Dale_, Apr 11 2013