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 A110573 Numbers n such that the string 666n is prime. 1
 1, 17, 29, 43, 53, 83, 97, 109, 119, 139, 143, 167, 173, 187, 191, 203, 229, 233, 269, 277, 301, 329, 353, 403, 427, 431, 433, 437, 439, 461, 467, 493, 511, 527, 529, 541, 557, 559, 599, 607, 637, 643, 647, 649, 667, 671, 683, 697, 707, 727, 733, 737, 749 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE If n=139 then 666n = 666139 (prime). MATHEMATICA Select[Range[800], PrimeQ[666*10^IntegerLength[#]+#]&] (* Harvey P. Dale, Oct 04 2019 *) CROSSREFS Sequence in context: A104228 A049484 A274465 * A190497 A259614 A139840 Adjacent sequences: A110570 A110571 A110572 * A110574 A110575 A110576 KEYWORD nonn,base AUTHOR Parthasarathy Nambi, Sep 12 2005 EXTENSIONS More terms from Vincenzo Librandi, Mar 27 2010 STATUS approved

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Last modified September 16 09:24 EDT 2024. Contains 375965 sequences. (Running on oeis4.)