// https://wokwi.com/projects/422350080049242113

const int LEDpins[] = {2, 3, 4, 5}; //create an array of pin numbers

const int LEDpincount = sizeof LEDpins / sizeof *LEDpins;  //calculate the size for use later

const int ON = HIGH;  //defines the LED conditions in terms of output pin state
const int OFF = LOW;

int litestate[][LEDpincount] =    //defines  your states.  Remember, if the number of pins changes, the number of columns will need changing
{
  {1, 0, 0, 0},
  {0, 1, 0, 0},
  {0, 0, 1, 0},
  {0, 0, 0, 1},
  {1, 1, 0, 0},
  {1, 0, 1, 0},
  {1, 0, 0, 1},
  {0, 1, 1, 0},
  {0, 1, 0, 1},
  {0, 0, 1, 1},
  {1, 1, 1, 0},
  {1, 1, 1, 1}
};

const int states = sizeof litestate / sizeof *litestate; //calculate number of random states created

void setup() {
  for (int ii = 0; ii < LEDpincount; ii++) {  //loop through pin array
    pinMode(LEDpins[ii], OUTPUT);            //sets the mode of every LED pin
    digitalWrite(LEDpins[ii], OFF);  //not essential, but shuts off all LEDs to start with
  }
}

void loop() {
  int row = random(0, states);// since second limit is exclusive, we will never get states as a value, just states to states-1
  for (int column = 0; column < LEDpincount; column++) {  
    digitalWrite(LEDpins[column],litestate[row][column]);  //access the correct state for the row:pin desired
    delay(166);
  }
}