byte led_pwm_array[16];
byte no_of_leds = 16;
byte resolution = 120;
byte overlap = resolution/2;

for (byte i = 0; i < no_of_leds; i++){
  led_pwm_array[i] = abs(abs(map(constrain(a0,(i*overlap),((i*overlap)+resolution)),(i*overlap),((i*overlap)+resolution), -255, 255))-255);
  }


Serial.print(a0);
for (byte i = 0; i < no_of_leds; i++){
    Serial.print(" ");Serial.print(led_pwm_array[i]);
}
Serial.println(" ");