2052081

Appears in sequences

• a(n) = 12*n^4 + 16*n^3 + 10*n^2 + 4*n + 1.at n=20A272124
• G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 - x)) / (1 - x)^2.at n=14A351437