67772

Appears in sequences

• Coefficient of x in the reduction of the n-th Fibonacci polynomial by x^3->x^2+x+1.at n=16A192617
• a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = 1, a(1) = 3, a(2) = 6, a(3) = 10.at n=20A295719
• Expansion of Sum_{k>=0} (k^2 * x/(1 - x))^k.at n=4A355495