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>
| 276: | \[L_{276}\] | 2 × 7 × 232 × 253367 × 3365543 × 4333249681<10> × 9506372193863<13> × 18423463609862225329<20> |