4th-order digital invariants: the sum of the 4th power of the digits of n equals some number k and the sum of the 4th power of the digits of k equals n.
A072409
4th-order digital invariants: the sum of the 4th power of the digits of n equals some number k and the sum of the 4th power of the digits of k equals n.
Terms
- a(0) =1a(1) =1634a(2) =2178a(3) =6514a(4) =8208a(5) =9474
External references
- oeis: A072409