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A029973 Primes that are palindromic in base 5. 4
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

P. De Geest, World!Of Palindromic Primes

MATHEMATICA

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 *)

CROSSREFS

Sequence in context: A155056 A110456 A128348 * A054551 A049065 A274609

Adjacent sequences:  A029970 A029971 A029972 * A029974 A029975 A029976

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified March 30 05:12 EDT 2017. Contains 284297 sequences.