A101331 - OEIS

A101331

Fermat(Mersenne(x)) = 2^(2^(2^x-1))+1

3, 5, 257, 340282366920938463463374607431768211457

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OFFSET

0,1

COMMENTS

Fermat-Mersenne numbers.

LINKS

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

KEYWORD

nonn

AUTHOR

STATUS

approved