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>
| 920: | \[L_{920}\] | 47 × 367 × 1601 × 3041 × 2257739682241<13> × 37309023160481<14> × 3666722972369761<16> × 229036634383450199521<21> × 441720958100381917103<21> × 102899488503377372377223252536301134241<39> × 6874250232150891079581982150152596953848720126107344828862561<61> |