 0    2     0       xy     
 1    7     1	    a
 1.5  9.5   2.25    3.375
 2   12     4	    8.008
 3   17     9	   27
 3.5 19.5  12.25   42.875  
 4   22    16	   63.936
 5   27    25	  125
 5.5 29.5  30.25  166.375 
 6   32    36	  216         1296
 7   37    49	  343
 8   42    64	  512         4096     ----
 9   47    81	  729
10   52   100	 1000         ----
