through recursion Calculate the number of fibonacci.

I want to return the list of Fibonacci numbers `n `

, but as a result I get a mistake:

```
TypeRorror: CAN Only Concatenate List (not "int") to list
```

*code: *

```
def file (n):
s = []
IF N In (1, 2):
Return 1.
ELSE:
S.APPEND (FIB (N-1) + FIB (N-2))
Return S.
```

I do not understand why it happens. Thanks in advance for the help.

## Answer 1, Authority 100%

```
def file (n):
IF N In (1, 2):
Return 1.
Return FIB (N - 1) + FIB (N - 2)
Print (FIB (5))
```

## Answer 2, Authority 100%

- Each recursive call you reset the list of
`S = []`

. - In the base case, you return the number, and should list (
*from here and error*).

.

Based on this, and the generation of a new number will look different.

*Example: *

```
def file (n: int) - & gt; List:
IF n == 1:
Return [1]
ELIF N == 2:
Return [1, 1]
Li = FIB (N-1)
Li.APPEND (Li [-1] + Li [-2])
Return Li.
Print (FIB (5))
```

*stdout *

```
[1, 1, 2nd, 3, 5]
```