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>
| 1219: | \[L_{1219}\] | 139 × 461 × 1328711 × 119218851371<12> × 508905711704472539<18> × 211124276312842952736080865197473905809<39> × 7769230987374425525709913582273917547441<40> × 221328398301138000027145867397129468610618499271009<51> × 303984613207776116882691960279738920115663988213696640801150674811553779393864892207829<87> |