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 A162862 Numbers n such that n^10 + n^9 + n^8 + n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1 is prime. 35
 1, 5, 17, 20, 21, 30, 53, 60, 86, 137, 172, 195, 212, 224, 229, 258, 268, 272, 319, 339, 355, 365, 366, 389, 390, 398, 414, 467, 480, 504, 534, 539, 543, 567, 592, 619, 626, 654, 709, 735, 756, 766, 770, 778, 787, 806, 812, 874, 943, 973, 1003, 1036, 1040 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The associated primes are in A162861. Numbers n such that Phi(11,n) is prime, where Phi(11,n) = (n^11 - 1)/(n - 1) is the eleventh cyclotomic polynomial. - Jianing Song, Sep 05 2018 LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 FORMULA A000040 INTERSECT A060885. MATHEMATICA Select[Range[100], PrimeQ[1 + Sum[#^i, {i, 10}]] &] (* Alonso del Arte, Apr 11 2014 *) PROG (PARI) is(n)=isprime(polcyclo(11, n)) \\ Charles R Greathouse IV, Sep 14 2015 CROSSREFS Cf. A060885, A162861. Sequence in context: A255901 A098333 A252232 * A043338 A023711 A045119 Adjacent sequences:  A162859 A162860 A162861 * A162863 A162864 A162865 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Jul 14 2009 STATUS approved

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Last modified October 20 07:33 EDT 2019. Contains 328252 sequences. (Running on oeis4.)