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>
| 513: | \[L_{513}\] | 22 × 192 × 229 × 5779 × 9349 × 95419 × 162451 × 1617661 × 7038398989<10> × 51513406617400034364080828860546058956692562707518637508655420323201<68> |