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>
436: | \[L_{436}\] | 7 × 2856113921 × 657260575798011765406142510792855512395193572120997168445702890242321058261403681<81> |