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>
838: | \[L_{838}\] | 3 × 122347 × 37346375041<11> × 132764675201<12> × 1052975767733843<16> × 7066080514282329599956662482749168331492468486430207711604202289875123011909827902886599624699629072953455124709316169730953089600641<133> |