A029974 Primes that are palindromic in base 6.

2, 3, 5, 7, 37, 43, 61, 67, 191, 197, 1297, 1627, 1663, 1699, 1741, 1777, 1999, 2143, 2221, 2293, 2551, 6521, 6779, 7001, 7109, 7151, 7187, 7331, 7481, 7517, 7703, 47521, 47737, 49069, 49537, 51517, 52201, 54181, 55987, 57751, 59083

Offset

1,1

Links

John Cerkan, Table of n, a(n) for n = 1..10000

P. De Geest, World!Of Palindromic Primes

Mathematica

f[n_]:=FromDigits[RealDigits[n, 6][[1]]]==FromDigits[Reverse[RealDigits[n, 6][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p], AppendTo[lst, p]], {n, 8!}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 10 2009 *)
Select[Prime[Range[6000]], IntegerDigits[#, 6]==Reverse[IntegerDigits[#, 6]]&] (* Harvey P. Dale, Mar 13 2023 *)

Crossrefs

Sequence in context: A217070 A274678 A048415 * A065727 A090713 A090912

Adjacent sequences: A029971 A029972 A029973 * A029975 A029976 A029977

Keyword

nonn,base

Author

Patrick De Geest

Status

approved