OFFSET
1,1
EXAMPLE
For p=2, (2^2-1)^2=9; for p=3, (2^3-1)^2=49; for p=5, (2^5-1)^2=961.
MATHEMATICA
Table[(2^Prime[n] - 1)^2, {n, 20}] (* Vincenzo Librandi, May 01 2015 *)
PROG
(Magma) [(2^p-1)^2: p in [0..1000] |IsPrime(p)];
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Apr 11 2010
EXTENSIONS
Definition clarified by Jon E. Schoenfield, Jun 18 2010
More terms from Vincenzo Librandi, May 01 2015
STATUS
approved