Hi, I was just looking at this problem with sequences and I was having a question about factorials. I understand that the factorials need to get smaller. I was just wondering what is the (3)(2)(1) in the problem symbolizing? Just that it will eventually reach the end? and what numbers are 3 2 1? is it 3n? or -3? just getting confused here. Its only half the problem, but I understand what needs to be done for the sequence, just the factorial part was the problem. heres the pic: http://img266.imageshack.us/my.php?image=26456876rm5.jpg I appreciate the help.