906596

Appears in sequences

• Starts of runs of 4 consecutive numbers that have an equal number of even and odd exponents in their prime factorization (A187039).at n=0A348078
• Starts of runs of 4 consecutive numbers that have an equal number of unitary and nonunitary prime divisors (A348097).at n=1A348100
• Starts of runs of 5 consecutive numbers that have an equal number of unitary and nonunitary prime divisors (A348097).at n=0A348101
• 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.at n=3A356415