title: What is the correct way to append via loop in racket?
body: <p>started learning racket today. I was attempting to find the correct way to append via a loop but could not find the answer or figure out the syntax myself.</p>
  
  <p>For example, if I want a row of nine circles using hc-append, how can I do this without manually typing out nine nested hc-append procedures?</p>