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>
539: | \[L_{539}\] | 29 × 199 × 229769 × 9321929 × 229038349 × 599786069 × 1386508633049<13> × 20713049378346955939<20> × 9750395456667378643901<22> × 92724898789601689969446859<26> |