random basic coding Randomly blinks one of 8 LEDs

//random basic coding Randomly blinks one of 8 LEDs
/*Code by Gary Granai steamtraininfo.com .
 Complete documentation and live demonstration at  https://steamtraininfo.com/arduino-projects/random-blink-led
 Complete arduino for model railroaders library at  https://steamtraininfo.com/arduino-projects
 You may freely use and change this sketch as long as all the information above is included unchanged.
 */


void setup() {
/* This sets 8 leds on pins D2 to D9 to output
 */
  for (int i = 2; i <= 9; i++) {
    pinMode(i, OUTPUT); // sets pins to output
  }
  randomSeed(analogRead(A0)); /*sets the pin to create "static so the the initial LED to light is different
  eacg time through the loop  */
}

//***************************************************
void loop() {
  BlinkRandomly();

}

//**************************************************
void BlinkRandomly() {
  int LightLED = random(2, 10); //randomly selects LED to light.  Must use +1 over the last pin number
  //(ie: 9 + 1 = 10)
  int dlay = 250; // sets the blink rate in milliseconds
  digitalWrite(LightLED, HIGH);
  delay(dlay);
  digitalWrite(LightLED, LOW);
  delay(dlay);
}