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 A109166 Numbers n such that the concatenation of consecutive increasing numbers beginning with prime(n) and ending with prime(n+1) is prime; or n such that A111875(n) is prime. 0
 1, 37, 58, 119, 130, 195, 292, 419, 453, 464, 561, 617, 618, 652, 679, 720, 762, 787, 827, 830, 945, 1034, 1090, 1139, 1191, 1200, 1344, 1383, 1386, 1451, 1496, 1519, 1774, 1783, 1820, 1822, 1911, 1966, 1973, 2018, 2128, 2219, 2247, 2378, 2566, 2644 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Honaker's prime curiosity corresponds to a(2)=37. Concatenating all the increasing numbers from prime(1473480)=23428439 to prime(1473481)=23428523 produces a 680-digit prime (certified). LINKS G. L. Honaker, Jr., Prime Curios EXAMPLE a(3)=58 because prime(58)=271 and prime(59)=277 and 271272273274275276277 is prime. CROSSREFS Sequence in context: A134222 A179150 A127023 * A090798 A000928 A073276 Adjacent sequences:  A109163 A109164 A109165 * A109167 A109168 A109169 KEYWORD easy,nonn,base AUTHOR Jason Earls, Aug 18 2005 STATUS approved

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Last modified January 18 21:54 EST 2019. Contains 319282 sequences. (Running on oeis4.)