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>
| 664: | \[L_{664}\] | 47 × 1327 × 14430049 × 7881555169<10> × 133862559361<12> × 6095035837865668961<19> × 1012299988213769450175559440307123237119636734024667706723845823400122209091140688160303<88> |