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>
| 407: | \[L_{407}\] | 199 × 205129 × 4792019 × 54018521 × 3473266369 × 311379581597016565173529362255085372911306092656839779<54> |