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>
| 446: | \[L_{446}\] | 3 × 175723 × 9237507401<10> × 331881380821075796562141706309693205920002090318329169413013943329066932468947<78> |