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>
1109: | \[L_{1109}\] | 13309 × 1263250590419<13> × 81054835584353161<17> × 958404385867855279<18> × 1727791775790872219<19> × 2593217705677557880343826627528983754007256269923465036693403361842217927690398586330914175704800119854974789675355369595370686486846440174480150411607713926653921<163> |