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>
| 1490: | \[L_{1490}\] | 3 × 41 × 214561 × 186870543750841<15> × 222448929009201481<18> × 271293387891105049<18> × 1048397584307975025515107529<28> × 1865509997227344923879868198191878638289601<43> × 423247212549196259564735536243048554495898511664155722695056147392413716616719479064919404962641257102803508639574515082568856086012849052374230173083799892851476779541467966844822852601<186> |