A243459 - OEIS

A243459

Primes p such that (p reversed)-5 is also a prime.

7, 43, 61, 67, 211, 223, 241, 271, 439, 463, 601, 607, 613, 619, 631, 691, 811, 853, 859, 877, 883, 2011, 2083, 2131, 2137, 2143, 2161, 2221, 2287, 2293, 2341, 2377, 2557, 2593, 2647, 2677, 2689, 2713, 2731, 2749, 2857, 2887, 2917, 2971, 4003, 4051, 4057, 4111

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OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[4, 5000]], PrimeQ[FromDigits[Reverse[IntegerDigits[#]]] - 5] &]

PROG

(Magma) [p: p in PrimesInInterval(4, 5000) | IsPrime(q-5) where q is Seqint(Reverse(Intseq(p)))];

CROSSREFS

Cf. similar sequences listed in A243457.

Sequence in context: A159254 A062336 A085704 * A301628 A061241 A062337

Adjacent sequences: A243456 A243457 A243458 * A243460 A243461 A243462

KEYWORD

nonn,base

AUTHOR

Vincenzo Librandi, Jun 05 2014

STATUS

approved