A167215 - OEIS

A167215

Primes whose reversal + 1 is also prime.

2, 61, 211, 271, 277, 283, 601, 613, 631, 643, 661, 691, 829, 853, 883, 2011, 2017, 2029, 2083, 2089, 2143, 2161, 2203, 2221, 2239, 2251, 2269, 2281, 2287, 2293, 2341, 2347, 2371, 2383, 2389, 2467, 2551, 2683, 2719, 2731, 2749, 2767, 2791, 2803, 2851

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OFFSET

1,1

COMMENTS

61 is prime and 16+1 = 17 is also a prime.

LINKS

Jens Kruse Andersen, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Prime[Range[500]], PrimeQ[IntegerReverse[#] + 1] &] (* Vincenzo Librandi, Feb 25 2020 *)

PROG

(Magma) [p: p in PrimesUpTo(3000) | IsPrime((Seqint(Reverse(Intseq(p)))) + 1)]; // Vincenzo Librandi, Feb 25 2020

CROSSREFS