Least k>1 such that all powers k^e, 1 <= e <= n, are divisible by the number of their divisors, d(k^e).
A272980
Least k>1 such that all powers k^e, 1 <= e <= n, are divisible by the number of their divisors, d(k^e).
Terms
- a(0) =2a(1) =60a(2) =1056a(3) =1260a(4) =1441440a(5) =551350800a(6) =42226984800a(7) =111924212400
External references
- oeis: A272980