+1.00 1.00 +2.00 3.00 +3.00 6.00 +4.00 10.00 +5.00 15.00 +6.00 21.00 *1.00 21.00 *2.00 42.00 *3.00 126.00 *4.00 504.00 *5.00 2,520.00 *6.00 15,120.00 /1.00 15,120.00 /2.00 7,560.00 /3.00 2,520.00 /4.00 630.00 /5.00 126.00 /6.00 21.00