#4


int d[] = {0, 1, 3, 6, 12, 24, 48, 96, 192,128,0,128,192,224,240,248,252,254,255,252,240,192,0};
int d1;
int i;
long t = 1000;
long t2 = 500;

void setup() {
  DDRD = 255;
}

void loop() {
  d1 = 0;
  i = 0;
   while (i < 10) {  
  i++    
  d1++;
  PORTD= d[d1];
  delay(t2);
   }
  
  ////////////////
  i = 0;
   while (i < 12) { 
     i++ 
     d1++;
  PORTD= d[d1];
  delay(t);
   }
 
}