OFFSET
1,1
COMMENTS
All terms are of the form 100*2^k-3. [Bruno Berselli, May 14 2013]
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..49
EXAMPLE
97*2+3=197 is prime, therefore it is in the sequence; 1597*2+3=3197 is not prime, therefore it is not in the sequence.
MATHEMATICA
Select[NestList[2 # + 3 &, 97, 30], PrimeQ] (* Vincenzo Librandi, May 14 2013 *)
PROG
(Magma) x:=97; a:=[n eq 1 select x else 2*Self(n-1)+3: n in [1..100]]; [a[i]: i in [1..#a] | IsPrime(a[i])]; // Bruno Berselli, May 14 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Apr 06 2010
EXTENSIONS
51197 added by Bruno Berselli, May 14 2013
STATUS
approved