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>
| 540: | \[L_{540}\] | 2 × 7 × 23 × 241 × 2161 × 6263 × 8641 × 20641 × 103681 × 2756161 × 2651851441 × 177962167367<12> × 13373763765986881<17> × 211147827837410728467664213741775985604772881<45> |