OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[6000]], PrimeQ[FromDigits[Reverse[IntegerDigits[#]]] + 7]&]
Select[Prime[Range[600]], PrimeQ[IntegerReverse[#]+7]&] (* Harvey P. Dale, May 20 2023 *)
PROG
(Magma) [p: p in PrimesUpTo(6000) | IsPrime(q+7) where q is Seqint(Reverse(Intseq(p)))];
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Vincenzo Librandi, Jan 04 2014
STATUS
approved