# Implicit Formula

Master7731

## Homework Statement

3, 9, 81, 65, 61, 37,... and so on

## Homework Equations

Im stuck not sure how to approach and therefore get a rule

## The Attempt at a Solution

I tried using the arithmetic and geometric formulas but im not getting anywhere

Homework Helper
Hi Master7731!

Hint: what's 81 squared ?

Master7731
i understand the 3,9,81, as it increase by the square of the previous number part but then it goes does to 65 which i dun understand at all

tatiana_eggs
Is the problem copied down correctly? Are you sure there is a comma between 65 and 61? If so, does it give you any numbers after 37?

Homework Helper
i understand the 3,9,81, as it increase by the square of the previous number part but then it goes does to 65 which i dun understand at all

Hint: what's 81 squared ?

Master7731
omg thanks so much tiny-tim so i get it 81 squared is 6761 and 61 squared if 3721 but evne so i been trying to write an equation with no luck as its supposed to be in an implicit formula, so is it like Xn squared but then i dunt know what to write