Modified Bessel Function Kn, n>=2

   n       x         actual          bessk(n,x)
   2     0.20      4.9512428e+01    4.9512428e+01 
   2     1.00      1.6248389e+00    1.6248389e+00 
   2     2.00      2.5375974e-01    2.5375974e-01 
   2     2.50      1.2146021e-01    1.2146020e-01 
   2     3.00      6.1510459e-02    6.1510459e-02 
   2     5.00      5.3089438e-03    5.3089438e-03 
   2    10.00      2.1509817e-05    2.1509815e-05 
   2    20.00      6.3295436e-10    6.3295441e-10 
   3     1.00      7.1012630e+00    7.1012630e+00 
   3     2.00      6.4738542e-01    6.4738536e-01 
   3     5.00      8.2917688e-03    8.2917679e-03 
   3    10.00      2.7252700e-05    2.7252700e-05 
   3    50.00      3.7279367e-23    3.7279364e-23 
   5     1.00      3.6096060e+02    3.6096060e+02 
   5     2.00      9.4310493e+00    9.4310484e+00 
   5     5.00      3.2706272e-02    3.2706276e-02 
   5    10.00      5.7541849e-05    5.7541845e-05 
   5    50.00      4.3671822e-23    4.3671819e-23 
  10     1.00      1.8071330e+08    1.8071330e+08 
  10     2.00      1.6248241e+05    1.6248236e+05 
  10     5.00      9.7585630e+00    9.7585640e+00 
  10    10.00      1.6142552e-03    1.6142552e-03 
  10    50.00      9.1509884e-23    9.1509884e-23 
  20     1.00      6.2943696e+22    6.2943705e+22 
  20     2.00      5.7708568e+16    5.7708564e+16 
  20     5.00      4.8270006e+08    4.8270019e+08 
  20    10.00      1.7874428e+02    1.7874431e+02 
  20    50.00      1.7061485e-21    1.7061483e-21