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>
234: | \[L_{234}\] | 2 × 33 × 107 × 467 × 21529 × 90481 × 12280217041<11> × 123944171348849444948627<24> |