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>
| 677: | \[L_{677}\] | 771781 × 798982537859791<15> × 5395243337012494775921359<25> × 8399194089571232622081529<25> × 109232638627806347309681912620627250266978342009136080838571332708783591<72> |