Shift Register Forwards and Backwards

/* Void Loop Oder of LEDs
 *  ANANIAS HAYES
 */

const int SER = 8;
const int LATCH = 9;
const int CLK = 10;
int lights [15] = { 1, 2, 4, 8, 16, 32, 64, 128, 64, 32, 16, 8, 4, 2, 1};
int BAR [16] = {1, 3, 7, 15, 31, 63, 127, 255, };

void setup()
{
  pinMode (SER, OUTPUT);
  pinMode (LATCH, OUTPUT);
  pinMode (CLK, OUTPUT);
}

void loop()
{
  for (int i = 0; i < 15; i++)
  {
    digitalWrite (LATCH, LOW);
    shiftOut (SER, CLK, MSBFIRST, lights [i]);
    digitalWrite (LATCH, HIGH);
    delay (100);
  }
  for (int  j= 0; j < 16; j++)
  {
    digitalWrite (LATCH, LOW);
    shiftOut (SER, CLK, MSBFIRST, BAR[j]);
    digitalWrite (LATCH, HIGH);
    delay (100);
  }

}