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 A163319 #3 Mar 31 2012 12:38:25 %S A163319 2,17,58049,6461081889226673298791633, %T A163319 273892744995340833777347939263771534786080723598328513, %U A163319 141158163862183763292171284564016760661754655311572624335224092241585052457078933432718798844633407313 %N A163319 Primes of the form 3^n-n^3. %C A163319 Generated by the n of A109387. The number of decimal digits in this sequence grows as 1, 2, 5, 25, 54, 102, 166, 194,... %C A163319 The large terms beyond a(6) are not shown. %t A163319 f[n_]:=3^n-n^3; lst={};Do[If[PrimeQ[f[n]],AppendTo[lst,f[n]]],{n,4*5!}]; lst %K A163319 nonn %O A163319 1,1 %A A163319 _Vladimir Joseph Stephan Orlovsky_, Jul 24 2009 %E A163319 Edited by _R. J. Mathar_, Jul 26 2009