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>
| 839: | \[L_{839}\] | 25171 × 990958016288171<15> × 275052916916232208825530605431<30> × 44546050034901247957397739647880035432324711<44> × 71688416804161647263764873417078475618632627029783409677523671680433461713886134079<83> |