215072

Appears in sequences

• Product(n/k - k) where the product is over the divisors k of n and where 1 <= k <= sqrt(n).at n=47A068333
• G.f. A(x) satisfies A(x) = 1 + x^4*(1+x)*A(x)^2.at n=38A366589
• a(n) = Sum_{k=0..floor(n/2)} binomial(n,k) * binomial(2*k,n-2*k).at n=13A387288