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>
343: | \[L_{343}\] | 29 × 2094359 × 599786069 × 1837202669 × 7197108309638972949020920202934083308037422199<46> |