A029979 Primes that are palindromic in base 12.

2, 3, 5, 7, 11, 13, 157, 181, 193, 229, 241, 277, 761, 773, 797, 809, 821, 857, 1039, 1051, 1063, 1087, 1123, 1607, 1619, 1667, 21169, 21313, 21601, 22621, 23053, 23197, 23629, 23773, 23917, 24061, 24793, 25657, 25801, 26821, 27109, 27253

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

P. De Geest, World!Of Palindromic Primes

Mathematica

f[n_]:=FromDigits[RealDigits[n, 12][[1]]]==FromDigits[Reverse[RealDigits[n, 12][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p], AppendTo[lst, p]], {n, 8!}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 10 2009 *)
pal12Q[n_]:=Module[{idn=IntegerDigits[n, 12]}, idn==Reverse[idn]]; Select[ Prime[ Range[3000]], pal12Q] (* Harvey P. Dale, Sep 23 2016 *)

Crossrefs

Sequence in context: A238851 A037949 A110600 * A029981 A029982 A292238

Adjacent sequences: A029976 A029977 A029978 * A029980 A029981 A029982

Keyword

nonn,base

Author

Patrick De Geest

Status

approved