4, 5, 5, 6, 7, 8, 9, 10, 12, 13, 15, 17, 20, 23, 26, 30, 34, 39, 44, 51, 58, 66, 76, 87, 99, 113, 129, 148, 169, 193, 221, 252, 288, 329, 376, 430, 491, 562, 642, 734, 838, 958, 1095, 1251, 1430, 1634, 1868, 2135, 2440, 2788, 3187, 3642, 4162, 4757, 5436, 6213