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>
| 1517: | \[L_{1517}\] | 166871 × 54018521 × 370248451 × 94530526109<11> × 25992357208639<14> × 15282957029913691<17> × 12131557559821582744179512151567374234704277720869<50> × 5170855376248931632836347169344940834245481547934089231<55> × 12704511558863357274240375045350254953141240838438370010349<59> × 1083356492555968027442434772306261786038910522834603900274171486446940655367773122314147409481<94> |