a(n) is the least start of exactly n consecutive numbers that have an equal sum of even and odd exponents in their prime factorization (A356413), or -1 if no such run of consecutive numbers exists.
A356416
a(n) is the least start of exactly n consecutive numbers that have an equal sum of even and odd exponents in their prime factorization (A356413), or -1 if no such run of consecutive numbers exists.
Terms
- a(0) =1a(1) =819a(2) =1274a(3) =19940a(4) =204323a(5) =149228720a(6) =3144583275
External references
- oeis: A356416