int repeat(int ld, int qnt, int clk) {
  pinMode(ld, OUTPUT);
  for (qnt; qnt > 0; qnt--) {
    digitalWrite(ld, 1);
    delay(clk);
    digitalWrite(ld, 0);
    delay(clk);
  }
}

void setup() {
  repeat(13, 5, 250);
}

void loop() {
  // put your main code here, to run repeatedly:

}