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A174744
(2^p-1)^2 where p is prime.
0
9, 49, 961, 16129, 4190209, 67092481, 17179607041, 274876858369, 70368727400449, 288230375077969921, 4611686014132420609, 18889465931203702947841, 4835703278454118652313601, 77371252455318674995150849, 19807040628565802923409276929
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
Cf. A133049.
Sequence in context: A115326 A069666 A175734 * A133049 A188140 A050632
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