A074895 Primes written backwards and sorted.

2, 3, 5, 7, 11, 13, 14, 16, 17, 31, 32, 34, 35, 37, 38, 71, 73, 74, 76, 79, 91, 92, 95, 97, 98, 101, 104, 106, 107, 112, 113, 118, 119, 124, 125, 128, 131, 133, 134, 136, 142, 145, 146, 149, 151, 152, 157, 164, 166, 167, 172, 175, 179, 181, 182, 188, 191, 194

Offset

1,1

Comments

Numbers not divisible by 10 whose digital reversal is prime. - David A. Corneth, Feb 26 2026

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..3500

Mathematica

Take[Sort[FromDigits[Reverse[IntegerDigits[#]]]&/@Prime[Range[500]]], 60] (* Harvey P. Dale, Nov 08 2011 *)
Take[Sort[IntegerReverse[Prime[Range[500]]]], 60] (* Harvey P. Dale, Mar 26 2025 *)

Prog

(PARI) isok(k) = (k%10) && isprime(fromdigits(Vecrev(digits(k)))); \\ Michel Marcus, Feb 26 2026
(Magma) Sort([StringToInteger(Reverse(IntegerToString(NthPrime(i)))) : i in [1..500]])[1..60]; // Vincenzo Librandi, Feb 26 2026

Crossrefs

Cf. A000040, A004087.

Sequence in context: A032524 A097312 A095179 * A371653 A298536 A331784

Adjacent sequences: A074892 A074893 A074894 * A074896 A074897 A074898

Keyword

base,easy,nonn

Author

Jason Earls, Sep 14 2002

Extensions

Offset changed by Andrew Howroyd, Sep 18 2024

Status

approved