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 A167727 #7 Jun 22 2016 03:05:12
%S A167727 1,343,4913,226981,389017,456533,571787,912673,1295029,2352637,
%T A167727 5177717,5735339,7645373,9129329,10218313,11089567,19902511
%N A167727 Cubes that becomes a prime number when prefixed with a 3.
%C A167727 Subsequence of cubes of A032666. - _Michel Marcus_, Jun 22 2016
%H A167727 G. C. Greubel, <a href="/A167727/b167727.txt">Table of n, a(n) for n = 1..10000</a>
%t A167727 a441 = Select[Range[1, 5000, 2]^3, PrimeQ[FromDigits[Join[{3}, IntegerDigits[#]]]] &] (* _G. C. Greubel_, Jun 21 2016 *)
%Y A167727 Cf. A032666.
%K A167727 base,nonn
%O A167727 1,2
%A A167727 _Claudio Meller_, Nov 10 2009