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>
696: | \[L_{696}\] | 2 × 47 × 463 × 929 × 1103 × 9743 × 12527 × 277007 × 503498927 × 117379304989399969<18> × 5228853274873739041<19> × 43561231976081277978655158673967<32> × 1405951459311457993425484734980167027704556129<46> |