s0=0.1i, si+1=-3.0*si2+0.1
Center:-2+0i; Zoom = 0.04
This one uses the a*si2+b sequence generator with a = -3, b = 0.1. The sequence converges quickly to a small value. The result is a large fractal. Large in the sense that the capture area extends well beyond the |c|<=2.0 that is typical with quadratic polynomials. The horizontal range of this image is (-25,+25).