a(n) is the least start of a run of exactly n successive powerful numbers that are pairwise coprime, or -1 if no such run exists.
A373705
a(n) is the least start of a run of exactly n successive powerful numbers that are pairwise coprime, or -1 if no such run exists.
Terms
- a(0) =72a(1) =1a(2) =9a(3) =289a(4) =702464a(5) =7827111875
External references
- oeis: A373705