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>
814: | \[L_{814}\] | 3 × 43 × 307 × 1627 × 11987 × 1173787 × 377896243 × 81143477963<11> × 3073286696528707<16> × 536131473772897007587<21> × 69248380442070496061610204020941115469584322409<47> × 41173096615302262300533088783856117706956075272003<50> |