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Cubes that become prime numbers when prefixed with an 8.
1

%I #10 Nov 28 2016 02:42:46

%S 27,1331,4913,9261,12167,35937,2924207,8869743,12649337,14348907,

%T 19465109,23639903,25153757,30080231,34965783,36926037,41781923,

%U 43986977,55306341

%N Cubes that become prime numbers when prefixed with an 8.

%C Subsequence of cubes of A032671. - _Michel Marcus_, Jun 22 2016

%H G. C. Greubel, <a href="/A167732/b167732.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[1, 500, 2]^3, PrimeQ[FromDigits[Join[{8}, IntegerDigits[#]]]] &] (* _G. C. Greubel_, Jun 22 2016 *)

%Y Cf. A032671.

%K base,nonn

%O 1,1

%A _Claudio Meller_, Nov 10 2009