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>
| 568: | \[L_{568}\] | 47 × 3407 × 9649001061967<13> × 914790513360285883042337078209<30> × 35867876364044367992126884952637306288504737268948723532233320646390881<71> |