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A101331
Fermat(Mersenne(x)) = 2^(2^(2^x-1))+1
0
3, 5, 257, 340282366920938463463374607431768211457
OFFSET
0,1
COMMENTS
Fermat-Mersenne numbers.
EXAMPLE
F(M(0))= 3
F(M(1))= 5
F(M(2))= 257
F(M(3))= 340282366920938463463374607431768211457
PROG
(PARI) for(x=0, 4, print( ( 2^(2^(2^x-1))+1 )))
CROSSREFS
Sequence in context: A268535 A268695 A167483 * A232239 A087368 A309740
KEYWORD
nonn
AUTHOR
Jorge Coveiro, Dec 24 2004
STATUS
approved