A363836 a(n) = smallest number m such that digitsum(m^n) < digitsum(m), or -1 if no such m exists.
39, 587, 124499
Offset: 2
Examples
a(2) = A064399(1). a(3) = A064209(1). a(4) = A261439(1).
Links
- Jeppe Stig Nielsen et al., Integers n for which the digit sum of n exceeds the digit sum of n^5, Math StackExchange, 2015.
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