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>
| 1270: | \[L_{1270}\] | 3 × 41 × 1523 × 3556001 × 347366417511089201<18> × 11142699355207239401<20> × 76252069628164074340107412376147<32> × 132040253666246247987226662753661115871281115043939549669680498978938432383162353141318634263769721317508595911163236883659836692127798668533646625043870483012788753427188785514180810921<186> |