The values are
#color(white)(aaaa)##x/2##color(white)(aaaa)##x##color(white)(aaaaaa)##y##color(white)(aaaa)##(1821-16x^2)#
#color(white)(aaaa)##0##color(white)(aaaaa)##0##color(white)(aaaaa)##1821##color(white)(aaaaaa)##1821#
#color(white)(aaaa)##1##color(white)(aaaaa)##2##color(white)(aaaaa)##1757##color(white)(aaaaaa)##1757#
#color(white)(aaaa)##2##color(white)(aaaaa)##4##color(white)(aaaaa)##1565##color(white)(aaaaaa)##1565#
#color(white)(aaaa)##3##color(white)(aaaaa)##6##color(white)(aaaaa)##1245##color(white)(aaaaaa)##1245#
#color(white)(aaaa)##4##color(white)(aaaaa)##8##color(white)(aaaaa)##797##color(white)(aaaaaaaa)##797#
#color(white)(aaaa)##5##color(white)(aaaaa)##10##color(white)(aaaaa)##221##color(white)(aaaaaaa)##221#
The function is
#y=1821-16x^2#