gistfile1.kt

fun main(args: Array<String>) {
  println (30.buzzbuzz().toList())
}

fun Int.buzzbuzz(): java.util.Iterator<Int> {
  var buzz = #(0, 0)
  fun Int.range(size:Int) = (this + 1 .. this + size)
  fun buzzer() = {
    if (buzz._1 >= this) {
      null
    } else {
      buzz = #(buzz._1 + 1, buzz._2.range(15).find {it % 3 != 0 && it % 5 == 0}.sure())
      buzz._2
    }
  }
  return iterate<Int>(buzzer())
}