a(n) is the least start of exactly n consecutive numbers that have an equal number of even and odd exponents in their prime factorization (A187039), or -1 if no such run of consecutive numbers exists.

A356415

a(n) is the least start of exactly n consecutive numbers that have an equal number of even and odd exponents in their prime factorization (A187039), or -1 if no such run of consecutive numbers exists.

Terms

    a(0) =1a(1) =44a(2) =603a(3) =906596a(4) =792007675

External references