ctbl:=[ [ 1, 5586, 6384, 52136, 58653 ], [ 1, 196, -106, 161, -252 ], [ 1, -21, 111, 161, -252 ], [ 1, 42, 48, -280, 189 ], [ 1, -56, -64, 56, 63 ] ];