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>
508: | \[L_{508}\] | 7 × 1810989685607<13> × 1155333137794466358130062711636874331425462747755838712900914488174203836784504367968088157703<94> |