[рони]

Vor_tex,

<script>
  function a(n,x)
  {
     var sum = x;
     for (var i = 0; i < n; ){
        x = x * 1.3 + 300 * ++i;
        sum += x
     }
     return  [n,x,sum]

  } ;
for (var i=0; i<10; i++)  {document.write(a(i,100).join(" ")+ "<br>")}
  </script>