%I #8 Mar 30 2012 18:35:25
%S 1,6,9,27,177147
%N Smallest k that converges after exactly n iterations of the Kempner function A002034.
%C The next term, a(6) = 3^88563, is too large to include.
%Y Cf. A002034, A018194, A025492.
%K nonn
%O 1,2
%A _David W. Wilson_