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>
| 245: | \[L_{245}\] | 11 × 29 × 71 × 491 × 911 × 1471 × 88972241 × 599786069 × 4353947431<10> × 459807660691<12> |