int LED[] = {5, 6, 9, 10, 11};
int val[5] = {250, 150, 0, 150, 250};
int clk = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  for (int i = 0; i < 5; i++) {
    pinMode(LED[i], OUTPUT);
    digitalWrite(LED[i], HIGH);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i = 0; i < 5; i++) {
    analogWrite(LED[i], val[(i + clk) % 5]);
  }
  clk += 1;
  delay(200);
}