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>
| 624: | \[L_{624}\] | 2 × 769 × 2207 × 3167 × 7489 × 45045727 × 209477530853761<15> × 25359046378567103950868518943<29> × 39586709834808244008811690207<29> × 33572492155965085110381182723111728607<38> |