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>
890: | \[L_{890}\] | 3 × 41 × 986981521 × 53219846201<11> × 495999192961<12> × 115168134973153601<18> × 5280544535667472291277149119296546201<37> × 511941174817697863051518176392725493467118022805975301123961695822903369366675954610829625544655721<99> |