# Leonardo number

Definition from Wiktionary, the free dictionary

## English[edit]

### Etymology[edit]

### Noun[edit]

**Leonardo number** (*plural* **Leonardo numbers**)

- (mathematics) Any of a sequence of numbers related to the Fibonacci numbers. L(0) = 1, L(1) = 1, and then, for all n larger than 1, L(n) = L(n-1)+L(n-2)+1.