Question

Here are the first four terms of a sequence

4 , 11 , 22 , 37
find an expression, in terms of n, for the nth term of this sequence

Answer 1

Explanation:

Determine an algebraic expression for the nth term of the following sequence.

A set of 3 figures are connected squares. Figure 1 is a column of 5 squares next to a column of 3 shaded squares. Figure 2 is figure 1 with an additional column of 3 shaded squares to the right. Figure 3 is figure 2 with an addition column of 3 shaded squares to the right to make 9 shaded squares.