Help with Implicit Formula HW: 3, 9, 81, 65...

[Master7731]

Homework Statement

I have to find an implicit rule for this pattern, Can Someone please help me?

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 I am not getting anywhere

 

[tiny-tim]

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?

 

[tiny-tim]

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

 

[tiny-tim]

omg thanks so much tiny-tim so i get it 81 squared is 6761 …

6561, actually!