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 A110480 Numbers n such that (n^2+6)/5 is prime. 3
 2, 3, 7, 17, 23, 47, 53, 77, 133, 143, 157, 173, 193, 203, 217, 233, 247, 343, 347, 353, 373, 383, 427, 443, 457, 493, 527, 577, 583, 707, 767, 817, 823, 847, 857, 893, 907, 973, 1003, 1067, 1117, 1127, 1153, 1193, 1207, 1223, 1243, 1253, 1277, 1333, 1397 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 FORMULA a(n) = Sqrt(A110481(n)). MATHEMATICA Select[Range[1500], PrimeQ[(#^2+6)/5]&] (* Harvey P. Dale, May 24 2013 *) PROG (PARI) is(n)=isprime((n^2+6)/5) \\ Charles R Greathouse IV, May 22 2017 CROSSREFS Cf. A110481, A110482. Sequence in context: A113425 A289379 A245590 * A268539 A083822 A030086 Adjacent sequences:  A110477 A110478 A110479 * A110481 A110482 A110483 KEYWORD nonn AUTHOR Giovanni Teofilatto, Sep 09 2005 EXTENSIONS Corrected and extended by Rick L. Shepherd and Ray Chandler, Sep 12 2005 STATUS approved

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Last modified October 23 10:00 EDT 2019. Contains 328345 sequences. (Running on oeis4.)