#include <Adafruit_NeoPixel.h>
#define PIN 4                         
#define NUM_LEDS 256 

Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, PIN, NEO_GRB + NEO_KHZ800);

int ledArray1[] = //outside into center 16x16 (256 pixels)
{
0,1,2,3,4,5,6,7,8,9,
10,11,12,13,14,15,16,47,48,79,
80,111,112,143,144,175,176,207,208,
239,240,241,242,243,244,245,246,247,248,
249,250,251,252,253,254,255,224,223,192,
191,160,159,128,127,96,95,64,63,32,
31,30,29,28,27,26,25,24,23,22,
21,20,19,18,17,46,49,78,81,110,
113,142,145,174,177,206,209,238,237,236,
235,234,233,232,231,230,229,228,227,226,
225,222,193,190,161,158,129,126,97,94,
65,62,33,34,35,36,37,38,39,40,
41,42,43,44,45,50,77,82,109,114,
141,146,173,178,205,210,211,212,213,214,
215,216,217,218,219,220,221,194,189,162,
157,130,125,98,93,66,61,60,59,58,
57,56,55,54,53,52,51,76,83,108,
115,140,147,172,179,204,203,202,201,200,
199,198,197,196,195,188,163,156,131,124,
99,92,67,68,69,70,71,72,73,74,75,
84,107,116,139,148,171,180,181,182,183,
184,185,186,187,164,155,132,123,100,91,
90,89,88,87,86,85,106,117,138,149,
170,169,168,167,166,165,154,133,122,101,
102,103,104,105,118,137,150,151,152,153,
134,121,120,119,136,135,                                 

  };
     void setup() 
{
  strip.begin();
  strip.setBrightness(30);
  strip.show();
  }
void loop()
{
  rainbow(10); // rainbow pattern full screen...
  }
//-------------------------rainbow---------------------------------------------------
void rainbow(uint8_t wait) 
{
  for (int n=0; n<4; n++)// n<(#) number of times it will cycle pattern
  {
    uint16_t i, j;

     for(j=0; j<256; j++) 
     {
    for(i=0; i<strip.numPixels(); i++) 
     {
      strip.setPixelColor(ledArray1[i], Wheel((i+j) & 255));
     }
    strip.show();
    delay(2);
     }
  }
}
//----------------------------------------------------------------------------------------
uint32_t Wheel(byte WheelPos) {
  if(WheelPos < 85) {
   return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  } else if(WheelPos < 170) {
   WheelPos -= 85;
   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  } else {
   WheelPos -= 170;
   return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  strip.show();
    delay(10);
}