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>
| 1518: | \[L_{1518}\] | 2 × 32 × 43 × 307 × 4049 × 4969 × 16561 × 162563 × 275449 × 16181881 × 261399601 × 1043766587 × 5820501809<10> × 52993348627<11> × 23056952302360681<17> × 3584067779910136774717365896253615367627502274728803<52> × 438828784135492642792409738456586834260513674010349131570152867686882711341355745744195513642822049517680718716257954870229391184952927366117077878384530303073242387591341525321<177> |