How to solve this recursive sequence MATH 2

Test Preparation SAT Subject Test Preparation
1

A sequence is recursively defined by an = a(n minus 1) + 2a(n minus 2), for n greater than 2. If a1 = 0 and a2 = 1, what is the value of a6?

I did it manually although it said I could use a calculator. I have a TI-inspire CX and there is an option to graph a sequence but I have no idea how to use it.

Thanks in advance

2

@HunstsmanDream there are likely tutorials or videos on how to create recursive sequences using a TI-NSpire CX calculator. I would search Google for this. Try to follow their explanations step by step.

For SAT Math II purposes, it is almost always faster to simply do it manually.

If you wish to actually solve the recursion, you can do so using a generating function for terms of the recursion.