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A029973
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Primes that are palindromic in base 5.
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7
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2, 3, 31, 41, 67, 83, 109, 701, 911, 1091, 1171, 1277, 1327, 1667, 1847, 2083, 2213, 2293, 2423, 2473, 2579, 2659, 2789, 2969, 3049, 16001, 16651, 19531, 20431, 21481, 23311, 23561, 24611, 25391, 26041, 27091, 28921, 30871, 31121
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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f[n_]:=FromDigits[RealDigits[n, 5][[1]]]==FromDigits[Reverse[RealDigits[n, 5][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p], AppendTo[lst, p]], {n, 8!}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 10 2009 *)
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CROSSREFS
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KEYWORD
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nonn,base,changed
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AUTHOR
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STATUS
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approved
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