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 A103171 Start of nine consecutive primes whose digit reversals are also prime. 3
 1193, 1201, 7904639, 91528739, 91528777, 120890249, 154984343, 174625597, 302706311, 302706319, 312700789, 318629783, 707262887, 756791029, 777528457, 777528461, 778286917, 778286947, 923780981, 924408493, 924408497, 958610069 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS There are large gaps in this sequence because all terms begin with 1, 3, 7, or 9. LINKS EXAMPLE 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237 and 1249 are consecutive primes. Their digit reversals, 3911, 1021, 3121, 7121, 3221, 9221, 1321, 7321 and 9421, are all prime. CROSSREFS Cf. A007500, A103169, A103170, A103172. Sequence in context: A299720 A300341 A040104 * A032530 A344628 A353263 Adjacent sequences:  A103168 A103169 A103170 * A103172 A103173 A103174 KEYWORD base,nonn AUTHOR Labos Elemer, Jan 31 2005 EXTENSIONS Edited by David Wasserman, Sep 05 2006 STATUS approved

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Last modified July 1 16:51 EDT 2022. Contains 354973 sequences. (Running on oeis4.)