EL depending on CR and number of creatures

The DMG has a table for calculating encounters (replicated below), but I find this presentation to be less confusing. You pick a CR (rows) and a number of creatures (columns) and the number in the cell indicates the EL.

 Number of creatures
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Challenge Rating
11 2 3 4 5 5 6 6 6 7 7 7 7 8 8 8 8 8 8 9
22 4 5 6 7 7 8 8 8 9 9 9 9 10 10 10 10 10 10 11
32 4 5 6 7 7 8 8 8 9 9 9 9 10 10 10 10 10 10 11
44 6 7 8 9 9 10 10 10 11 11 11 11 12 12 12 12 12 12 13
55 7 8 9 9 10 10 11 11 11 12 12 12 12 12 13 13 13 13 13
66 8 9 10 11 11 12 12 12 13 13 13 13 14 14 14 14 14 14 15
77 9 10 11 12 12 13 13 13 14 14 14 14 15 15 15 15 15 15 16
88 10 11 12 13 13 14 14 14 15 15 15 15 16 16 16 16 16 16 17
99 11 12 13 14 14 15 15 15 16 16 16 16 17 17 17 17 17 17 18
1010 12 13 14 15 15 16 16 16 17 17 17 17 18 18 18 18 18 18 19
1111 13 14 15 16 16 17 17 17 18 18 18 18 19 19 19 19 19 19 20
1212 14 15 16 17 17 18 18 18 19 19 19 19 20 20 20 20 20 20 21
1313 15 16 17 18 18 19 19 19 20 20 20 20 21 21 21 21 21 21 22
1414 16 17 18 19 19 20 20 20 21 21 21 21 22 22 22 22 22 22 23
1515 17 18 19 20 20 21 21 21 22 22 22 22 23 23 23 23 23 23 24
1616 18 19 20 21 21 22 22 22 23 23 23 23 24 24 24 24 24 24 25
1717 19 20 21 22 22 23 23 23 24 24 24 24 25 25 25 25 25 25 26
1818 20 21 22 23 23 24 24 24 25 25 25 25 26 26 26 26 26 26 27
1919 21 22 23 24 24 25 25 25 26 26 26 26 27 27 27 27 27 27 28
2020 22 23 24 25 25 26 26 26 27 27 27 27 28 28 28 28 28 28 29

CR depending on EL and number of creatures

This is similar to the same table listed in the DMG. You pick a desired EL (rows) and the number of creatures (columns), and the number in the cell indicates the CR of those creatures.

 Number of creatures
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Encounter Level
11 0.5 0.33 0.25 0.2 0.17 0.14 0.13 0.11 0.1 0.09 0.08 0.08 0.07 0.07 0.06 0.06 0.06 0.05 0.05
22 1 0.67 0.5 0.4 0.33 0.29 0.25 0.22 0.2 0.18 0.17 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.1
32 1 0.67 0.5 0.4 0.33 0.29 0.25 0.22 0.2 0.18 0.17 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.1
44 2 1 1 0.8 0.67 0.57 0.5 0.44 0.4 0.36 0.33 0.31 0.29 0.27 0.25 0.24 0.22 0.21 0.2
55 3 2 1 1 0.83 0.71 0.63 0.56 0.5 0.45 0.42 0.38 0.36 0.33 0.31 0.29 0.28 0.26 0.25
66 4 3 2 2 1 1 1 0.89 0.8 0.73 0.67 0.62 0.57 0.53 0.5 0.47 0.44 0.42 0.4
77 5 4 3 2 2 2 1 1 1 1 0.92 0.85 0.79 0.73 0.69 0.65 0.61 0.58 0.55
88 6 5 4 3 3 2 2 2 2 1 1 1 1 1 1 0.94 0.89 0.84 0.8
99 7 6 5 4 4 3 3 3 2 2 2 2 2 1 1 1 1 1 1
1010 8 7 6 5 5 4 4 4 3 3 3 3 2 2 2 2 2 2 2
1111 9 8 7 6 6 5 5 5 4 4 4 4 3 3 3 3 3 2 2
1212 10 9 8 7 7 6 6 6 5 5 5 5 4 4 4 4 4 4 3
1313 11 10 9 8 8 7 7 7 6 6 6 6 5 5 5 5 5 4 4
1414 12 11 10 9 9 8 8 8 7 7 7 7 6 6 6 6 6 6 5
1515 13 12 11 10 10 9 9 9 8 8 8 8 7 7 7 7 7 7 6
1616 14 13 12 11 11 10 10 10 9 9 9 9 8 8 8 8 8 8 7
1717 15 14 13 12 12 11 11 11 10 10 10 10 9 9 9 9 9 9 8
1818 16 15 14 13 13 12 12 12 11 11 11 11 10 10 10 10 10 10 9
1919 17 16 15 14 14 13 13 13 12 12 12 12 11 11 11 11 11 11 10
2020 18 17 16 15 15 14 14 14 13 13 13 13 12 12 12 12 12 12 11