a(n) is the first number k such that k^i is a quasi-Niven number (A209871) for 1<=i<=n but not for i=n+1.
A356978
a(n) is the first number k such that k^i is a quasi-Niven number (A209871) for 1<=i<=n but not for i=n+1.
Terms
- a(0) =13a(1) =11a(2) =1145a(3) =121a(4) =31109a(5) =1510081a(6) =34110497a(7) =5343853441a(8) =17636269729
External references
- oeis: A356978