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>
| * 2166: | \[L_{2166}\] | 2 × 32 × 227 × 26449 × 147289 × 23986283 × 29134601 × 212067587 × 1791255286001<13> × 7180544058803<13> × 80380915480084570664933066985142827961<38> × 31776327359851500910725293598619843657421561<44> × 19370097058002190490966049371841721547962896501881<50> × [309600207941960208170950394974134255343637067726057987643556236447941260134664515413316012061241712200993169325371872539753979078975032002051488576621790308797647007641951410915527968452760122993767942655218315628069845251355874126338839962231111768488794093441<261>] |