1 
2, 3, 6
3, 4, 6, 10, 12, 15
4, 5, 6, 9, 10, 15, 18, 20
5, 6, 8, 9, 10, 12, 15, 18, 20, 24
6, 7, 8, 9, 10, 12, 14, 15, 18, 24, 28
7, 8, 9, 10, 11, 12, 14, 15, 18, 22, 24, 28, 33
8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 40
9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 40, 48
10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 28, 30, 33, 35, 36, 39, 40, 48, 52
11, 12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 26, 28, 30, 33, 36, 40, 42, 45, 48, 52, 63, 65
12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 33, 36, 40, 42, 44, 48, 52, 54, 55, 60, 63, 65 
13, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 50, 52, 54, 55, 56, 65, 72, 75
14, 15, 16, 18, 19, 20, 21, 22, 24, 26, 27, 28, 30, 33, 35, 36, 39, 40, 42, 44, 45, 48, 52, 54, 55, 56, 57, 60, 72, 76
15, 16, 17, 18, 19, 20, 21, 22, 24, 26, 27, 28, 30, 33, 34, 36, 39, 40, 42, 44, 45, 48, 52, 54, 55, 56, 57, 60, 72, 76, 85
16, 17, 18, 19, 20, 21, 22, 24, 26, 27, 28, 30, 33, 34, 35, 36, 39, 40, 42, 44, 45, 48, 50, 52, 54, 57, 60, 66, 70, 72, 75, 76, 85, 88
17, 18, 19, 20, 21, 22, 24, 26, 27, 28, 30, 33, 34, 35, 36, 39, 40, 42, 44, 48, 50, 52, 54, 55, 56, 57, 60, 63, 70, 72, 75, 76, 78, 80, 84, 85, 90, 91
18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 35, 36, 39, 40, 42, 44, 48, 50, 52, 54, 55, 56, 57, 60, 66, 72, 75, 76, 77, 78, 80, 84, 88, 91, 96, 99, 100