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>
| 551: | \[L_{551}\] | 59 × 9349 × 19489 × 11185301 × 52871721893101<14> × 1616127980022693828565683915491911<34> × 1381771310900590158807091676595101807652121752891791<52> |