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>
| 492: | \[L_{492}\] | 2 × 7 × 23 × 983 × 7775569 × 6950680026641927<16> × 8885812256785434407<19> × 16262153028670302865367<23> × 2684571411430027028247905903965201<34> |