47362

Appears in sequences

• Coefficient of x in the reduction by (x^2 -> x+1) of the polynomial p(n,x) given in Comments.at n=9A192882
• a(n) = Sum_{k=0..floor(n/4)} (-1)^k * binomial(n-1-3*k,k) * binomial(2*n-8*k,n-4*k).at n=9A360295