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>
| 564: | \[L_{564}\] | 2 × 7 × 23 × 18049 × 25943 × 100769 × 153409 × 153037630649666194962091443041<30> × 20735946690310257088163003971348099401545379654917628683352442014503<68> |