def Coefficients(n):
    L=[1,1]
    M=L
    for i in range(2,n+1):
        M=M+[1]
        for k in range(int(i/2)):
            M[k+1]=L[k+1]+L[k]
            M[i-(k+1)]=M[k+1]
        L=M
    return L