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>
| 453: | \[L_{453}\] | 22 × 1511 × 335221 × 89526391 × 109734721 × 217533000184835774779<21> × 10837399157311960843528910542685545748152881169441<50> |