0,1
Mersenne-Fermat numbers.
Table of n, a(n) for n=0..3.
a(n) = A070969(2^n)-2. - R. J. Mathar, Apr 22 2007
M(F(0))=7
M(F(1))=31
M(F(2))=131071
M(F(3))=31231584178474632390847141970017375815706539969331281128078915168015826259279871
(PARI) for(x=0, 3, print(2^(2^(2^x)+1)-1))
Sequence in context: A134709 A139314 A163083 * A193637 A214490 A164819
Adjacent sequences: A101326 A101327 A101328 * A101330 A101331 A101332
nonn
Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Dec 24 2004
approved
