A059697 Primes p such that p^4 reversed is also prime.

2, 19, 31, 61, 79, 113, 359, 421, 439, 443, 569, 599, 643, 761, 773, 787, 919, 983, 1069, 1097, 1117, 1123, 1171, 1321, 1627, 1657, 1667, 1669, 1747, 1759, 1777, 1831, 1913, 2341, 2347, 2351, 2389, 2399, 2441, 2917, 2957, 3089, 3181, 3253, 3299, 3571

Offset: 1

Author

Robert G. Wilson v, Feb 06 2001

Keywords

• nonn
• base

Links

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

Crossrefs

Cf. A059205.

Programs

Magma

[p: p in PrimesUpTo(3600) | IsPrime(Seqint(Reverse(Intseq(p^4))))]; // Vincenzo Librandi, Apr 12 2013

Mathematica

Select[ Range[ 5000 ], PrimeQ[ # ] && PrimeQ[ ToExpression[ StringReverse[ ToString[ #^4 ] ] ] ] & ]
Select[Prime[Range[500]],PrimeQ[IntegerReverse[#^4]]&] (* Harvey P. Dale, May 08 2022 *)