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A046473 Palindromic primes in base 10 and base 3. 0
2, 151, 757, 93739, 7949497, 112969211 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

P. De Geest, World!Of Palindromic Primes

MATHEMATICA

f[n_, b_]:=FromDigits[RealDigits[n, b][[1]]]==FromDigits[Reverse[RealDigits[n, b][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p, 3]&&f[p, 10], AppendTo[lst, p]], {n, 8!}]; lst (* Vladimir Joseph Stephan Orlovsky, Sep 25 2009 *)

CROSSREFS

Cf. A002385.

Sequence in context: A141130 A157074 A128350 * A261967 A024245 A113576

Adjacent sequences:  A046470 A046471 A046472 * A046474 A046475 A046476

KEYWORD

nonn,hard,base

AUTHOR

Patrick De Geest, Aug 15 1998

STATUS

approved

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