From: nma@12000.org   
      
   Here are the Kamke's differential equations out of   
   the first 900 that could not be solved by Mathematica   
   nor by Maple. (or it could be that these are actually   
   not solvable analytically, I do not know).   
      
   Can your CAS solve any of these? I tried Maxima 5.31.2   
   on some, but no luck. How about Sage?   
      
   38, 47, 48, 49, 50, 55, 74, 79, 82, 83, 110, 121,   
   202, 205, 206, 219, 234, 237, 250, 253, 265, 269,   
   331, 340, 367, 368, 370, 383, 395, 452, 460, 480,   
   482, 485, 503, 510, 531, 534, 537, 543, 572, 575,   
   576, 733, 788, 789   
      
   These are listed in plain text format in both Maple   
   and Mathematica syntax in the links at the   
   bottom of this page:   
      
   http://12000.org/my_notes/kamek/kamke_differential_equations.htm   
      
   --Nasser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)