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>
| 2247: | \[L_{2247}\] | 22 × 29 × 211 × 1499 × 47927441 × 809013091 × 479836483312919<15> × 511660866819952921<18> × 163432894718897814320076670502885071<36> × 410171209375476106991189090873434981<36> × 1242248774754335612874106889712533150006722572739<49> × 2739408712504950074306550826393058365436895585375712557449407525545637377899464001<82> × 494197165561446109889850723053181936984748313352681505509242212745002472468470251841449603974678499505232763663203897602195756361910098449815070968216476218686749082441937122468699610977230240672617535821502425381<213> |