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>
254: | \[F_{254}\] | 509 × 5081 × 27941 × 487681 × 13822681 × 19954241 × 5568053048227732210073<22> |