533205

Appears in sequences

• a(n) = n^3 + 3*n + 3^n.at n=12A220509
• G.f. A(x) satisfies: x^2*A(x) = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.at n=13A355364