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A243461 Primes p such that (p reversed)-9 is also a prime. 2
11, 23, 29, 41, 61, 67, 83, 89, 211, 223, 257, 263, 269, 271, 281, 283, 293, 601, 613, 619, 631, 641, 643, 653, 659, 661, 673, 811, 827, 829, 839, 853, 863, 877, 881, 883, 2011, 2027, 2039, 2063, 2083, 2087, 2111, 2129, 2131, 2207, 2221, 2243, 2269, 2311, 2333 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Prime[Range[5, 7000]], PrimeQ[FromDigits[Reverse[IntegerDigits[#]]] - 9] &]
PROG
(Magma) [p: p in PrimesInInterval(8, 7000) | IsPrime(q-9) where q is Seqint(Reverse(Intseq(p)))];
CROSSREFS
Cf. similar sequences listed in A243457.
Sequence in context: A072185 A105898 A247228 * A259560 A136001 A158203
KEYWORD
nonn,base
AUTHOR
Vincenzo Librandi, Jun 05 2014
STATUS
approved

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)