1,1

A139180(9)=10^9 so a(9)=(10^9)^(1/9)=10.

Cf. A139180.

Sequence in context: A058435 A070694 A018854 this_sequence A072321 A101118 A052205

Adjacent sequences: A139178 A139179 A139180 this_sequence A139182 A139183 A139184

base,nonn

Farideh Firoozbakht (mymontain(AT)yahoo.com), Apr 24 2008