Lucas number
A kind of number
About Lucas number
Lucas numbers form a sequence like Fibonacci: L_0=2, L_1=1, and L_n = L_{n-1} + L_{n-2}. So 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, …. Named after Édouard Lucas.
Key features
- Same recurrence as Fibonacci but different initial values.
- Closely related to the golden ratio and Fibonacci numbers.
Examples:
1, 2, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199