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>
| 1817: | \[L_{1817}\] | 139 × 461 × 43609 × 145361 × 61916183576801<14> × 1145796791217151<16> × 32361122672259149<17> × 57659014863154744508082089977614322480245743352268566369044702976469907303573854529638617532713388122223648198420678826541300043335690279575020855899803955533575215160576505598323919767279950662122368109445846513984249505294639043473605846769686913561370901023808627696880048819271328623721737172638647526724729786501799<320> |