I'm guessing you are saying...
6, 12, 18, 24, 30, 36, 42, 48, 54, 60,
66, 72, 78, 84, 90, 96, 102, 108, 114, 120,
126, 132, 138, 144, 150, 156, 162, 168, 174, 180,
186, 192, 198, 204, 210, 216, 222, 228, 234, 240,
246, 252, 258, 264, 270, 276, 282, 288, 294, 300,
306, 312, 318, 324, 330, 336, 342, 348, 354, 360,
366, 372, 378, 384, 390, 396, 402, 408, 414, 420,
426, 432, 438, 444, 450, 456, 462, 468, 474, 480,
486, 492, 498, 504, 510, 516, 522, 528, 534, 540,
546, 552, 558, 564, 570, 576, 582, 588, 594, 600
Hope this helps ;)