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>
255: | \[L_{255}\] | 22 × 11 × 31 × 919 × 1021 × 3469 × 3571 × 53551 × 95881 × 1158551 × 12760031 × 162716451241291<15> |