login
A188661
Primes of the form (2^n+3)^2-8.
4
17, 41, 113, 353, 1217, 4481, 67073, 1054721, 4206593, 16801793, 274881052673, 18014399314788353, 72057595648540673, 18446744099479355393, 4722366483281962074113, 79228162514266026443404214273
OFFSET
1,1
COMMENTS
Primes in A188129.
LINKS
Daniel Shanks, Gauss's ternary form reduction and the 2-Sylow subgroup, Math. Comp. 25 (1971), 837-853.
MATHEMATICA
Select[(2^Range[0, 50]+3)^2-8, PrimeQ] (* Harvey P. Dale, Apr 16 2011 *)
Select[Table[(2^n + 3)^2 - 8, {n, 80}], PrimeQ] (* Vincenzo Librandi, Mar 21 2013 *)
PROG
(Magma) [a: n in [0..100] | IsPrime(a) where a is (2^n+3)^2-8]; // Vincenzo Librandi, Mar 21 2013
CROSSREFS
Sequence in context: A243451 A145991 A139961 * A205171 A070183 A201705
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Apr 14 2011
STATUS
approved