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>
| 826: | \[L_{826}\] | 3 × 281 × 14867 × 15247723 × 100049587197598387<18> × 2199478067322354790175093885108776685313695390555353837875277525300628726415767012539627105713573061235989575116840916082292035226194142857403<142> |