- #1
CStudent
- 15
- 0
Hey.
The series $a_n$ is defined by a recursive formula $a_n = a_{n-1} + a_{n-3}$ and its base case is $a_1 = 1 \ a_2 = 2 \ a_3 = 3$.
Prove that every natural number can be written as a sum (of one or more) of different elements of the series $a_n$.
Now, I know that is correct intuitively but I don't know how to prove that.
Generally, I have some problem of understanding the concept of recursion.
Thanks.
The series $a_n$ is defined by a recursive formula $a_n = a_{n-1} + a_{n-3}$ and its base case is $a_1 = 1 \ a_2 = 2 \ a_3 = 3$.
Prove that every natural number can be written as a sum (of one or more) of different elements of the series $a_n$.
Now, I know that is correct intuitively but I don't know how to prove that.
Generally, I have some problem of understanding the concept of recursion.
Thanks.