A set of all real numbers that is formed according to a certain logical order. All numbers follow a definite pattern.

The sum of the terms of a sequence.

Find the sixth term of the sequence if the first 4 terms are 3, 6, 12, 24, …

Find the sum of the first four terms in the sequence 0, 1, 4, 9, 16.

Find the sum of the first five terms of the sequence 2n + 3.