This fractal looks a bit like gold filigree. The formula is a variation of the parallel resistor formula with three z^2 components. The components are centered at -4.5, 0, and +4.5 along the imaginary y axis.
Here is a link to an image:
The Fractint compatible PAR file for the image is:
Black_Gold { ; Exported from Fracton.
reset=2004 type=formula formulafile=fracton.frm
formulaname=F_20130417_1555 passes=1 float=y
center-mag=-10.19972708650225/0/121.2121227272727/\
1/0/0
params=0/4.5/0/0/0/0/0/0/0/0 maxiter=2000
inside=0 periodicity=6
colors=000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O\
40C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40\
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0000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C100\
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ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA\
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0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0u\
a0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0\
ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0ym\
0zy0ym0ua0oS0hI0ZA0O40C10 }
frm:F_20130417_1555 {
; Similar to the parallel resistance formula
z=0,c1=pixel-p1,c2=pixel+p1,c3=pixel:
f1=z*z+c1,
f2=z*z+c2,
f3=z*z+c3,
z=1/(1/f1+1/f2+1/f3),
|z|<100
}
--
Mike Frazier
www.fracton.org