login
Powers of 9 with digit sum also a power of 9.
5

%I #9 Aug 14 2017 23:27:50

%S 1,9,81,150094635296999121

%N Powers of 9 with digit sum also a power of 9.

%C The next term is too large to include. - _Sascha Kurz_, Mar 18 2002

%Y Cf. A067499, A067500, A067501, A067502, A067503, A067504, A067505.

%K base,easy,nonn

%O 1,2

%A _Amarnath Murthy_, Feb 11 2002