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>
1851: | \[L_{1851}\] | 22 × 51829 × 736699 × 43289744221<11> × 40284185150479<14> × 173497094701334576762204857218463681<36> × 36428858129618313069242832472537825956253973215617378169<56> × 881807999374692263162623552650883434092674833548025120916866832559941434599328014086341873039457819883733564035369994616840509571<129> × 461921098152724032047037698800545143772639981832912271099596809665569995418014104622859661082736394127073008650889325757264214539791<132> |