Observe the law of the following series of numbers: 0,3,8,15,24. The number 2008 is -- the number n is-

Observe the law of the following series of numbers: 0,3,8,15,24. The number 2008 is -- the number n is-

The number of 2008 is 2008 × 2008-1 = 4032063
The nth number is n2-1