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>
| 771: | \[L_{771}\] | 22 × 61681 × 7844300491<10> × 84387968479<11> × 2107028233569599<16> × 125090447782502159<18> × 331629650087398639<18> × 1945042261468790758531<22> × 4852299338048663283201416290796398401838950822656264628542222161<64> |