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>
| 1580: | \[L_{1580}\] | 7 × 2161 × 675607 × 649683361 × 9176934600481<13> × 22510113009130321<17> × 143501353503851550769361<24> × 231900742042861225269632036231770950710877804680654044867543<60> × 34760775391826962170047381619540790960973284918916589936565261035172913827426741773554538501492460414924031673463048411977680934725316489565818588409653875168709268368011258107895602780081021214774081<200> |