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>
| 865: | \[L_{865}\] | 11 × 3461 × 25951 × 78889 × 6248069 × 19016161 × 29783681 × 16923049609<11> × 171246170261359<15> × 281333960470326971488976141<27> × 70359281441152565399256032303146631<35> × 375884050358530273067738694872947683471327760906327058463361<60> |