A013326 Expansion of -(2*x^3-x^2+x-1)/(x^4-3*x^3+3*x^2-3*x+1).

1, 2, 4, 7, 14, 31, 68, 146, 313, 674, 1453, 3130, 6740, 14515, 31262, 67331, 145012, 312314, 672637, 1448674, 3120041, 6719698, 14472356, 31169423, 67130254, 144579863, 311384740, 670635970, 1444363025