A077906 Expansion of (1-x)^(-1)/(1+x+2*x^3).

1, 0, 1, -2, 3, -4, 9, -14, 23, -40, 69, -114, 195, -332, 561, -950, 1615, -2736, 4637, -7866, 13339, -22612, 38345, -65022, 110247, -186936, 316981, -537474, 911347, -1545308, 2620257, -4442950, 7533567, -12774080, 21659981, -36727114, 62275275, -105595236, 179049465, -303600014