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>
| 628: | \[L_{628}\] | 7 × 3767 × 5064518561<10> × 32493323964781452407881872725673242792640318209<47> × 40440089592357195873482424063187697336048483837253388846806632872046087<71> |