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>
| 342: | \[L_{342}\] | 2 × 33 × 107 × 227 × 683 × 20521 × 26449 × 47881 × 29134601 × 212067587 × 6368731219987307<16> × 324968740886536921<18> |