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>
| 897: | \[L_{897}\] | 22 × 79 × 139 × 461 × 521 × 599 × 691 × 859 × 1485571 × 2233531 × 1194215681621<13> × 143236388738249<15> × 18318350856958932001<20> × 40197222522537856361<20> × 18478673408457912142429706198611951342646053368392323181511785058621832135082777203082846881<92> |