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>
| 442: | \[L_{442}\] | 3 × 67 × 883 × 63443 × 90481 × 3607603 × 6563589514883537474323387<25> × 9774149436586180936514535621848199625965839707<46> |