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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>

1561: \[L_{1561}\] 29 × 209621 × 4225691156826739060308858067235039<34> × 191782505151874799799825102831271417475449<42> × 34448229353464604637856254852373731873776112726133154050713245609924362174166016064608655553201478055717754768282286891064391566229714282027116179976459164043398653060688655044830621218619747091002833932572349465509097713563926936807621993234599<245>

Index range: 1561 – 1561 << prev next >>