Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
3, 6, 11,18, ...
The first four terms of a sequence are shown above. Which of the following could be the formula that gives the nth term of this sequence for all positive integers n?
(A) 2n
(B) (2n) + 1
(C) 3n
(D) (n^2) + 1
(E) (n^2) + 2