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>
258: | \[L_{258}\] | 2 × 32 × 7772507 × 73254041816089<14> × 258422401920467<15> × 313195711516578281<18> |