Question 1203475
<pre>

Here are the first 5 and the last 5 terms:

{{{(p+q)^n}}}{{{""=""}}}{{{p^n}}}{{{""+""}}}{{{np^(n-1)q}}}{{{""+""}}}{{{(matrix(2,1,n,2))p^(n-2)q^2}}}{{{""+""}}}{{{(matrix(2,1,n,3))p^(n-3)q^3}}}{{{""+""}}}{{{(matrix(2,1,n,4))p^(n-4)q^4}}}{{{""+""}}}{{{""*""*""*""}}}{{{""+""}}}{{{(matrix(2,1,n,n-4))p^4*q^(n-4)}}}{{{""+""}}}{{{(matrix(2,1,n,n-3))p^3*q^(n-3)}}}{{{""+""}}}{{{(matrix(2,1,n,n-2))p^2q^(n-2)}}}{{{""+""}}}{{{(matrix(2,1,n,n-1))p*q^(n-1)}}}{{{""+""}}}{{{q^n}}}

Edwin</pre>