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>

1231: \[L_{1231}\] 219119 × 560744605894015187499623971<27> × 1493963564804494853370339762140560757331069635542354629416537198678914525638889659029471651004166615126927263346327444923985458021186850815566989095610607575517709425584514177660238364677210812536680921006240594369938099527201<226>

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