426440955

Appears in sequences

• Number of walks of length 2n+8 in the path graph P_9 from one end to the other.at n=13A005024
• Expansion of x^3/((1-3*x+x^2)*(1-5*x+5*x^2)).at n=17A094865
• Constant term of the reduction of the polynomial p(n,x)=(1/2)((x+2)^n+(x-2)^n) by x^2->x+1.at n=17A192353