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>
557: | \[L_{557}\] | 916159171 × 278063948778421918293648132296072521647713677514562307377179539431968671695358771515550364118158732045117801<108> |