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>
| 1672: | \[L_{1672}\] | 47 × 3343 × 6689 × 70223 × 93058241 × 562418561 × 562766385967<12> × 2206456200865197103<19> × 25728283343665391830529<23> × 216775868249352528214719544888774413165977003496659722109487725475219421802731943832022918369510045426336389337741419120310295196958336550741689425015893750330023533407068694898471204036976809704322321639683506601315829277519421646927452423660800746898476659730090689<267> |