

A154253


Primes of the form 9n^28n+2.


1



2, 3, 59, 659, 1907, 2467, 3803, 9539, 19507, 23003, 24859, 30859, 37507, 42299, 52747, 58403, 61339, 67427, 98387, 122267, 126499, 139627, 162947, 182899, 209459, 214987, 232003, 243707, 280547, 347707, 362003, 383987, 429899, 478403
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OFFSET

1,1


COMMENTS

Primes in A154254.
Primes generated by n = 1, 3, 9, 15, 17, 21, 33, 47, 51, 53, 59,...
(All but the first of these are either 3 (mod 6) or 5 (mod 6), as in A047270, because otherwise 9n^28n+2 is a multiple of 2 or 3. R. J. Mathar, Jul 17 2012).


LINKS

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


MATHEMATICA

Select[Table[9n^28n+2, {n, 0, 1500}], PrimeQ] (* Vincenzo Librandi, Jul 16 2012 *)


PROG

(MAGMA) [a: n in [0..250]  IsPrime(a) where a is 9*n^28*n+2]; // Vincenzo Librandi, Jul 16 2012


CROSSREFS

Sequence in context: A157190 A152657 A299172 * A097961 A145556 A124083
Adjacent sequences: A154250 A154251 A154252 * A154254 A154255 A154256


KEYWORD

nonn,easy


AUTHOR

Vincenzo Librandi, Jan 05 2009


STATUS

approved



