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>
| 324: | \[L_{324}\] | 2 × 7 × 23 × 647 × 6263 × 103681 × 12340209383<11> × 177962167367<12> × 173421718166321520831726341471281<33> |