Lucas Sequence
Defined with \(L_0=2\), \(L_1=1\), and \(L_n=L_{n-1}+L_{n-2}\) when \(n\geq2\). Related to the Fibonacci sequence.
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 417: | \[L_{417}\] | 22 × 1669 × 30859 × 253279129 × 14331800109223159<17> × 1879523073048023218194798696994440982313556284925275779<55> |