On 7/23/06, Tanya Khovanova <tanyakh at tanyakhovanova.com> wrote: > I found two numbers n such that sum of digits of 2^n is equal to n: > 5 and 70. > > I can't find the corresponding sequence. > > Are there any other numbers like that? Such numbers be equal to 5 or 16 modulo 18. I've performed a search for n up to 18000. No new terms found. Max