5 = 6 * 1 - 1 7 = 6 * 1 + 1 11 = 6 * 2 - 1 13 = 6 * 2 + 1 17 = 6 * 3 - 1 19 = 6 * 3 + 1 23 = 6 * 4 - 1 29 = 6 * 5 - 1 31 = 6 * 5 + 1 37 = 6 * 6 + 1 41 = 6 * 7 - 1 43 = 6 * 7 + 1 47 = 6 * 8 - 1 53 = 6 * 9 - 1 59 = 6 * 10 - 1 61 = 6 * 10 + 1 67 = 6 * 11 + 1 71 = 6 * 12 - 1 73 = 6 * 12 + 1 79 = 6 * 13 + 1 83 = 6 * 14 - 1 89 = 6 * 15 - 1 97 = 6 * 16 + 1