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>
| 719: | \[L_{719}\] | 1439 × 569526904767781322550687379<27> × 172681293323020228546626434127696942772418303243617841<54> × 12920907216428060225679885471297054928461628797436989842420736076619<68> |