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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

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Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

1256: \[L_{1256}\] 47 × 2130956370383<13> × 28068706426493990410125969504931681<35> × 8071865085346066652027494937738950366627567<43> × 1357086234976553226310321427994760801679838332275398319531424818013602908347426363994388903943386117539823344219104431569018909217642183013891530371072022229942579872702241<172>

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