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>
| 1271: | \[L_{1271}\] | 238949 × 1357429 × 3010349 × 370248451 × 1376042958221506868451247981<28> × 584261897351399636312041113980932020470105779<45> × 144516941675154762567645742202761916678649842061166808999777471027354490065983548750164228113654487532528880011267543977428731757197050591006571783209482558806939830519<168> |