Product of non-unitary divisors of binomial(n, floor(n/2)) or a(n) = 1 if all divisors are unitary. See A046098.

A064033

Product of non-unitary divisors of binomial(n, floor(n/2)) or a(n) = 1 if all divisors are unitary. See A046098.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =20a(6) =1a(7) =1a(8) =15876a(10) =1a(11) =728933458176a(16) =1a(18) =1

External references