Question 1062558
<pre>

General formula:

{{{a[n]}}}{{{""=""}}}{{{(n-2)(n-3)(n^2+7n-20)/24}}}

{{{a[1]}}}{{{""=""}}}{{{(1-2)(1-3)(1^2+7*1-20)/24}}}{{{""=""}}}{{{(-1)(-2)(1+7-20)/24}}}{{{""=""}}}{{{(-1)(-2)(-12)/24}}}{{{""=""}}}{{{(-24)/24}}}{{{""=""}}}{{{-1}}}

{{{a[2]}}}{{{""=""}}}{{{(2-2)(2-3)(2^2+7*2-20)/24}}}{{{""=""}}}{{{(0)(-1)(4+49-20)/24}}}{{{""=""}}}{{{0}}}

{{{a[3]}}}{{{""=""}}}{{{(3-2)(3-3)(3^2+7*3-20)/24}}}{{{""=""}}}{{{(1)(0)(1+7-20)/24}}}{{{""=""}}}{{{0}}}

{{{a[4]}}}{{{""=""}}}{{{(4-2)(4-3)(4^2+7*4-20)/24}}}{{{""=""}}}{{{(2)(1)(16+28-20)/24}}}{{{""=""}}}{{{(2)(1)(24)/24}}}{{{""=""}}}{{{(48)/24}}}{{{""=""}}}{{{2}}}

{{{a[5]}}}{{{""=""}}}{{{(5-2)(5-3)(5^2+7*5-20)/24}}}{{{""=""}}}{{{(3)(2)(25+35-20)/24}}}{{{""=""}}}{{{(3)(2)(40)/24}}}{{{""=""}}}{{{(240)/24}}}{{{""=""}}}{{{10}}}

So the next term:

{{{a[6]}}}{{{""=""}}}{{{(6-2)(6-3)(6^2+7*6-20)/24}}}{{{""=""}}}{{{(4)(3)(36+42-20)/24}}}{{{""=""}}}{{{(4)(3)(58)/24}}}{{{""=""}}}{{{(696)/24}}}{{{""=""}}}{{{29}}}

Edwin</pre>