// output of ./demo/comb/hilbert-ndim-rec-demo.cc:
// Description:
//% Fred Lunnon's recursive algorithm for the n-dimensional Hilbert curve

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