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A059208 Numbers n such that n^7 reversed is a prime. 3

%I

%S 2,20,29,41,71,76,79,133,151,152,193,200,257,268,290,359,377,379,382,

%T 389,410,493,518,544,607,710,739,760,773,784,790,794,964,1006,1019,

%U 1024,1049,1178,1217,1330,1336,1339,1409,1427,1442,1448,1456,1481,1492

%N Numbers n such that n^7 reversed is a prime.

%H G. C. Greubel, <a href="/A059208/b059208.txt">Table of n, a(n) for n = 1..14000</a>

%t Select[Range[2000], PrimeQ[ToExpression[StringReverse[ToString[#^7]]]] &]

%t Select[Range[1500],PrimeQ[IntegerReverse[#^7]]&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, May 29 2017 *)

%K nonn,base

%O 1,1

%A _Robert G. Wilson v_, Jan 16 2001

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Last modified January 19 23:25 EST 2022. Contains 350466 sequences. (Running on oeis4.)