Rose spiral

I called this the Rose Spiral because of my first impression of it. The spiral was full of those nice little rose-like spirals that come our so often in these images. Well here are a few from this same equation:

$eq=(round(sqrt($num*$i)*($num))%3==0)
Where $x,$y are the coordinate points, $num is the place on the Ulam Spiral, and $i is the multiplier (noted below each image). And this is the result:

You can see the roses in this one:

Amazing spiral!

Run a series using the squares as multipliers if you like this one.

~WOW~