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>
| 2668: | \[L_{2668}\] | 7 × 253367 × 299281 × 9506372193863<13> × 91031436438401<14> × 1117303296141841<16> × 834428410879506721<18> × 885789604610750557026225561407256690356213384826749023653940301841939693129237219061890262853034434312823172729408317417906079538730134812008468957862685965132011931508072464468517740497857557553078867024543006986821669225654239829156019660693756397056076601983976975624287469109663316815219184295611327207309900970058801612769486374926901966840214171851099757236907564665638953609658390900870023147466955502211787651198539008361356917960890541343634007342534375827498635066054775186161<486> |