A078034 Expansion of (1-x)/(1+2*x^2-2*x^3).

1, -1, -2, 4, 2, -12, 4, 28, -32, -48, 120, 32, -336, 176, 736, -1024, -1120, 3520, 192, -9280, 6656, 18944, -31872, -24576, 101632, -14592, -252416, 232448, 475648, -969728, -486400, 2890752, -966656, -6754304, 7714816, 11575296, -28938240, -7720960, 81027072, -42434560, -177496064