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>
1387: | \[L_{1387}\] | 9349 × 151549 × 11899937029<11> × 5022513668009<13> × 9800929989102331<16> × 88471973402147045172076720391944679620361488422417640101109703786772220255229059998685233117103101289461536892615077047658403897896761002443128745059742870243721378015867575846785362533995302216713848412227033098227558663039575994801700027419<242> |