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>
| 426: | \[L_{426}\] | 2 × 32 × 283 × 569 × 16187 × 2820403 × 9799987 × 35537616083<11> × 1006118006507<13> × 474672373905841<15> × 4854330439365889765803819529<28> |