3, 4, 7, 10, 16, 21, 30, 40, 57, 84, 120, 181, 274, 420, 657, 1040, 1656, 2645, 4248, 6836, 11019, 17790, 28740, 46457, 75122, 121494, 196521, 317918, 514338, 832153, 1346396, 2178440, 3524715, 5703026, 9227614, 14930503, 24157974, 39088332, 63246153
