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>
| 290: | \[L_{290}\] | 3 × 41 × 347 × 5801 × 52201 × 96281 × 1270083883 × 6854280100961<13> × 372961972274566497161<21> |