A031124 Expansion of (1+z)/(1-z) - 2*sum( z^(m^2)/(1-z^((m+1)^2)), m=1..inf).

1, 0, 2, 2, 0, 0, 2, 2, 2, -2, 2, 2, 2, -2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, -4, 2, 2, 2, 0, 2, 0, 2, 0, 2, 2, 0, 0, 2, 2, 0, -4, 2, 2, 2, 0, 2, 2, 2, -4, 2, 2, 2, 0, 2, 2, 2, -2, 0, 2, 2, -2, 2, 2, 0, 0, 0, 0, 2, 0, 2, 2, 2, -2, 2, 2, 0, 0, 2, 2