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>
259: | \[F_{259}\] | 13 × 73 × 149 × 1553 × 2221 × 404656773793<12> × 3041266742295771985148799223649<31> |