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>
| 424: | \[L_{424}\] | 47 × 1022689 × 676934614737167<15> × 11136890221406863<17> × 112617883853409480474529393535080661039525648398049<51> |