On a previous page we learned that the quadratic formula for composite offset curves is:
y = ax^{2} + bx
Such numbers can be factored like this:
y = x(ax+b)
This factorization explains why all the integers on these curves are composite except for the first (where x is zero) and possibly the second (where x is one).
As an example, let's look at the first composite offset curve of angle 3/4. From the information on this page, we know that the coefficients of its corresponding quadratic function are
a = 4
b = 3
Therefore the function is
y = 4x^{2} + 3x
which tells us that the curve's integers can be factored like so:
x(4x+3)
This allows us to make the following table of the integers on the curve:
