Function fibonacciMemo

fibonacciMemo(n: number, memo?: Record<number, number>): number
Calculates the nth Fibonacci number.
Parameters
- n: number
  The index in the Fibonacci sequence (non-negative integer).
- memo: Record<number, number> = {}
Returns number
The nth Fibonacci number.
Example
```
fibonacci(5); // returns 5
fibonacci(7); // returns 13
```
- Defined in number.ts:271