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>
| 493: | \[L_{493}\] | 59 × 3571 × 19489 × 2004539 × 964838287139321446051<21> × 1352091823712049679616025983437139711549290136004358066983966563609<67> |