1 = 1
2 = 1.414213562
3 = 1.732050808
4 = 2
5 = 2.236067977
6 = 2.449489743
7 = 2.645751311
8 = 2.828427125
9 = 3
10 = 3.16227766
11 = 3.31662479
12 = 3.464101615
13 = 3.605551275
14 = 3.741647387
15 = 3.872983346
16 = 4
17 = 4.123105626
18 = 4.242640687
19 = 4.358898944
20 = 4.472135955
