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>
451: | \[L_{451}\] | 199 × 4274579 × 370248451 × 56909671435221082533169582520085662884377962564222829999842181652894123123019<77> |