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>
| 570: | \[L_{570}\] | 2 × 32 × 41 × 227 × 2281 × 2521 × 4561 × 26449 × 29134601 × 212067587 × 782747561 × 5731958761<10> × 164141871721<12> × 174795553490801<15> × 1435976563079869701849195207267724717921<40> |