A052023 - OEIS

A052023

Every suffix of palindromic prime a(n), containing no '0' digit, is prime (left-truncatable palindromic primes).

2, 3, 5, 7, 313, 353, 373, 383, 797, 76367, 79397, 7693967, 799636997

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

I. O. Angell and H. J. Godwin, On Truncatable Primes, Math. Comput. 31, 265-267, 1977.

C. K. Caldwell, Left and Right truncatable primes.

P. De Geest, The list of 4260 left-truncatable primes

Eric Weisstein's World of Mathematics, Prime strings

Index entries for sequences related to truncatable primes

MATHEMATICA

d[n_]:=IntegerDigits[n]; ltrQ[n_]:=And@@PrimeQ[NestList[FromDigits[Drop[d[#], 1]]&, n, Length[d[n]]-1]]; palQ[n_]:=Reverse[x=d[n]]==x; Select[Prime[Range[540000]], palQ[#]&&ltrQ[#]&] (* Jayanta Basu, Jun 02 2013 *)

CROSSREFS

Cf. A033664, A024785, A032437, A020994, A024770, A052024, A052025, A050986, A050987.

Sequence in context: A088297 A180015 A052024 * A052025 A359491 A045336

Adjacent sequences: A052020 A052021 A052022 * A052024 A052025 A052026

KEYWORD

nonn,base,fini,full

AUTHOR

G. L. Honaker, Jr. and Patrick De Geest, Nov 15 1999

STATUS

approved