Question

Which expression represents the value of the series below? 3 7 11 15 ... 1,671

Answer 1

Let n be the sequence number, starting with 0. The first number is 3, each succeeding number is incremented by 4. The nth number would have the value 3+4n

Explanation:

Using the above formula yields the attached table of values. We see that if n=417, that the value of 1,671 is correctly predicted.