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>
403: | \[L_{403}\] | 521 × 3010349 × 25054511 × 42430536084158188102317698250762108075724699403871413365975546725791<68> |