Fibonacci Sequence
Defined with \(F_0=0\), \(F_1=1\), and \(F_n=F_{n-1}+F_{n-2}\) when \(n\geq2\).
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
273: | \[F_{273}\] | 2 × 132 × 233 × 421 × 135721 × 640457 × 741469 × 159607993 × 1483547330343905886515273<25> |