4. In the expansion of the polynomial $\left(1+x^{2}+x^{4}\right)\left(1+x+x^{2}\right)^{5}$, the coefficient of the $x^{8}$ term is $\qquad$
4. 105 .

The required is the sum of the coefficients of the 4th term, 6th term, and 8th term in $\left(1+x+x^{2}\right)^{5}$.