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>
613: | \[L_{613}\] | 128654053254067001789796154414677061029563911266334766544884715737078582075546200311143377241563666249432665857145030497939634521<129> |