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>
578: | \[L_{578}\] | 3 × 67 × 3467 × 63443 × 893346576820363<15> × 52117518727310243<17> × 3029135813077302377712587490764532171725730308330163172507979186958388447438907<79> |