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>
| 725: | \[L_{725}\] | 11 × 59 × 101 × 151 × 1451 × 19489 × 23201 × 5315701 × 17431901 × 120196353941<12> × 1322154751061<13> × 39112859785265801<17> × 44082683453787258268141289241304375301<38> × 199005929846082820906192074956026987594151<42> |