%I #7 Jun 22 2016 03:05:02
%S 1,729,2197,9261,29791,250047,389017,531441,658503,912673,1367631,
%T 1860867,2685619,5000211,5545233,7189057,8120601,15069223,19034163,
%U 20346417,21253933,24137569,29503629
%N Cubes that becomes a prime number when prefixed with a 4.
%C Subsequence of cubes of A032667. - _Michel Marcus_, Jun 22 2016
%H G. C. Greubel, <a href="/A167728/b167728.txt">Table of n, a(n) for n = 1..10000</a>
%t Select[Range[1, 500000, 2]^3, PrimeQ[FromDigits[Join[{4}, IntegerDigits[#]]]] &] (* _G. C. Greubel_, Jun 21 2016 *)
%Y Cf. A032667.
%K base,nonn
%O 1,2
%A _Claudio Meller_, Nov 10 2009