a(1) = 1; for n > 1, the smallest n-th power with the digit sum also a nontrivial n-th power, i.e., 10^n is not a member.
A069647
a(1) = 1; for n > 1, the smallest n-th power with the digit sum also a nontrivial n-th power, i.e., 10^n is not a member.
Terms
- a(0) =1a(1) =4a(2) =8a(3) =14641a(4) =229345007a(5) =9474296896
External references
- oeis: A069647