So far the pattern looks like:
Boss lvl n x 1
Boss lvl (n-1) x y (where y is a whole number > 1)
Boss lvl (n+1) x 1
Boss lvl n x y (where y is a whole number > 1)
Easy
1/20 = 1 x lvl5
2/20 = Lvl10 x1
3/20 = Lvl5 x2
4/20 = Lvl 15x1
5/20 = Lvl10 x3
6/20 = 1 x 20
7/20 = 3 x 15
8/20 = 25 x1
9/20 = 20 x 3
10/20 = 30x1
11/20 = 25 x 4
12/20 = 35 x 1
13/20 easy 4 x lvl 30
14/20 Easy = 1 x 40
15/20 easy = 4 x 35
16/20 easy = 1 x 45
17/20 easy = 5 x 40
18/20 easy = 1 x 50
Normal
3/22 normal 3 x lvl 30
4/22 Normal = 1 x 40
5/22 Normal = 4 x 35
6/22 Normal = 1 x 45
7/22 Normal = 4 x 40
8/22 Normal = 1 x 50
Elite
3/27 = 5 x 60
anyone want to start? lol