Hi, I need help with coming up with an equation for the number of squares in each sequence. I have attached a copy of the question and I found out how to calculate the height in each figure by taking the figure number and then adding 1 which will give the height for any sequence. I am not sure how to calculate the number of squares, I have counted the total number of squares for each figure by counting diagonally from the top of the staircase but I am not sure how to come up with an equation?