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>
| 637: | \[L_{637}\] | 29 × 521 × 599786069 × 746379843301<12> × 689667151970161<15> × 725616425843401<15> × 1908292538086827724367052672920067031<37> × 2065110250346933758771288417381670735743411<43> |