OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = 2*A214289(n)^3 -1. - R. J. Mathar, Aug 20 2019
MATHEMATICA
Select[Table[2 n^3 - 1, {n, 0, 300}], PrimeQ] (* Vincenzo Librandi, Jul 25 2012 *)
PROG
(Magma) [a: n in [0..250] | IsPrime(a) where a is (2*n^3-1)];
(PARI) for(n=0, 200, if(isprime(k=2*n^3-1), print1(k", "))); \\ Vincenzo Librandi, Jul 25 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved