144663

Appears in sequences

• G.f.: x^2*(x^2 + x + 1)/(x^4 - 2*x + 1).at n=18A027084
• Expansion of x*(1+3*x)*(1+6*x+16*x^2)/((1-x)*(1+2*x)*(1-3*x-2*x^2)).at n=8A120723