

A153502


Primes of the form 3*n^2  3*n + 11.


1



11, 17, 29, 47, 71, 101, 137, 179, 227, 281, 479, 557, 641, 827, 929, 1151, 1667, 1811, 2447, 2621, 2801, 3581, 4007, 4229, 4457, 4691, 4931, 6221, 6779, 8597, 9587, 9929, 10631, 12107, 12491, 13679, 14087, 16217, 16661, 19937, 25127, 25679, 26237
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OFFSET

1,1


COMMENTS

Subsequence of A003627, A007528, A045371.  Bruno Berselli, Jul 16 2012
Also primes p such that (4*p41)/3 is a square.  Bruno Berselli, Sep 14 2015


LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000


MATHEMATICA

Select[Table[3 n^2  3 n + 11, {n, 1, 700}], PrimeQ] (* Vincenzo Librandi, Jul 16 2012 *)


PROG

(MAGMA) [a: n in [1..100]  IsPrime(a) where a is 3*n^23*n+11]; // Vincenzo Librandi, Jul 16 2012
(PARI) lista(nn) = for (n=1, nn, if (isprime(p=3*n^23*n+11), print1(p, ", "))) \\ Michel Marcus, Sep 14 2015


CROSSREFS

Cf. A003627, A007528, A045371.
Sequence in context: A111255 A060213 A234098 * A249377 A211486 A208573
Adjacent sequences: A153499 A153500 A153501 * A153503 A153504 A153505


KEYWORD

nonn,easy


AUTHOR

Vincenzo Librandi, Dec 28 2008


STATUS

approved



