s_{i} = 1, -1, 1, -1, …

Center:-2.21745+0i , Zoom = 800

Same location as yesterday Sequence Fractals Part I #5, with 10x zoom and 50% more color entropy. This is another two-cycle.

A two cycle means . The second iteration comes back to the start point. The second part of the definition excludes fixed points.
f is degree 4 polynomial in z and degree 2 in c. With the fixed start point z_{0}=0 the double iteration in the definition is a degree 8 polynomial in c. It has 8 roots, with 6 left over after removing the fixed points (0 and -3).

Here are the (c-parameter values) of the six two-cycles

```
2.00: -3.604653, 0.000000
2.01: -3.079229, 0.000000
2.02: -2.217445, 0.000000
2.03: -0.186836, 0.000000
2.04: 0.044082, 0.464238
2.05: 0.044082, -0.464238
```

2.00 is Sequence Fractals Part I #4. 2.02 is today’s image. 2.01 is the period 2 bulb (nose) in c = -3, Sequence Fractals Part I #3,
and 2.03 is the center of the nose of c = 0, Sequence Fractals Part I #2.
2.04 and 2.05 are the wings above and below the c=0 brot in Sequence Fractals Part I #2.