tables > lucas

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>

672: \[L_{672}\] 2 × 1087 × 2689 × 4481 × 21801023 × 11862575248703<14> × 4966336310413757728406317515606275329<37> × 8180446013881979766232718725267801762817730429421854800938664036525352767<73>

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