OddPicture

var cnt =-12;//x-value and counter for each polynomial
var a=0.01,t=0;//initial values for coefficients, and reset counter t
function setup() {
  createCanvas(400, 400);
  background(20);
  strokeWeight(0.1);//thin lines
}

function draw() {
  translate(width/2,width/2)
    fill(200, 250-10*t, 250,40)//gradient fill
    x1 = cnt;
    y1 = a*pow((x1),3)//Polynomial y value ax^3+bx^2+cx
    if(y1>-200 && y1 <200){
      circle(x1*15,y1,cnt*3)//draw a circle for a point on the polynomial
    }
    cnt=cnt+0.3;
    if (cnt>12){//draw the next polynomial
      newCoeff();// function to change coefficients
    }
}
function newCoeff(){
  a = a*1.5
  cnt = -12;//reset cnt
  t = t+1;
  if (t> 20){ 
    noLoop()//stops when done - uncomment previous two lines to loop and comment this one
  }
}