11010560

Appears in sequences

• Expansion of x*(1-x)^2/( (1-2*x^2)*(1-2*x)^2).at n=20A178945
• a(n) = [x^n] ((1 - x)*x)/((1 - 2*x)^2*(2*x^2 - 2*x + 1)).at n=20A321959