n1,n2,R,X,B/2,k
1,4,0,0.0576,0,1
2,7,0,0.0625,0,1
3,9,0,0.0586,0,1
4,5,0.01,0.085,0.088,0
4,6,0.017,0.092,0.079,0
5,7,0.032,0.161,0.153,0
6,9,0.039,0.17,0.179,0
7,8,0.0085,0.072,0.0745,0
8,9,0.0119,0.1008,0.1045,0