title: What is the logic of this fractal?
body: <p>I am doing a project for school and need to roughly reproduce this fractal (in BGI):</p>
  
  <p><img src="https://i.stack.imgur.com/nzD0U.jpg" alt="enter image description here"></p>
  
  <p>I'm stuck trying to find a placement logic for the middle-sized triangles, as they have to be drawn into a for/while loop.
   (I've drawn the main triangle and a circle  on the each side of it.)</p>
  
  <p>Any ideas are appreciated!</p>