There are 8 digits, not counting 4 or 5. Thus, there are 8^2 = 64 numbers not counting ones with 4 or 5. The smallest is 00, the largest is 99. (8 of them are smaller than 10.)
00, 01, 02, 03, 06, 07, 08, 09,
10, 11, 12, 13, 16, 17, 18, 19,
20, 21, 22, 23, 26, 27, 28, 29,
30, 31, 32, 33, 36, 37, 38, 39,
60, 61, 62, 63, 66, 67, 68, 69,
70, 71, 72, 73, 76, 77, 78, 79,
80, 81, 82, 83, 86, 87, 88, 89,
90, 91, 92, 93, 96, 97, 98, 99
00, 01, 02, 03, 06, 07, 08, 09,
10, 11, 12, 13, 16, 17, 18, 19,
20, 21, 22, 23, 26, 27, 28, 29,
30, 31, 32, 33, 36, 37, 38, 39,
60, 61, 62, 63, 66, 67, 68, 69,
70, 71, 72, 73, 76, 77, 78, 79,
80, 81, 82, 83, 86, 87, 88, 89,
90, 91, 92, 93, 96, 97, 98, 99
