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>
| 560: | \[L_{560}\] | 223 × 449 × 2207 × 91841 × 23725145626561<14> × 1154149773784223<16> × 62622732352299841<17> × 445869833657787739063361<24> × 69546813833965858411097465190527041<35> |