I know this is not a math forum, but I am so desperate, and I know there are lots of smart people on here. I have this math assignment and I can't do it! It'd due tomorrow too -_-;; Anyway, if anyone can solve this, please, please, let me know, thank you:

Cn=A(n)+A(n+1) -- A=kxk!

=nxn!+(n+1)(n+1)!

=n!(n^2+3n+1)

Tn=C1+C2+C3+...+Cn

Conjecture an expression for Tn.

I can't do it X_X