256763

Appears in sequences

• Number of (w,x,y,z) with all terms in {1,...,n} and w*x>=3*y*z.at n=32A211919
• G.f. A(x) satisfies: [x^n] A(x)^(n+1) = [x^n] (1 + x*A(x)^(n+3))^(n+1) for n >= 0.at n=6A360235