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>
| 558: | \[L_{558}\] | 2 × 33 × 107 × 3347 × 20089 × 993241 × 15917507 × 775585403 × 3020733700601<13> × 859886421593527043<18> × 210907424232568795946689<24> × 157945397950723345044852819601<30> |