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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>

997: \[L_{997}\] 3989 × 23929 × 2812229804394802590436094003069<31> × 5493474411685430299461235576811<31> × 15559327805081426984366880003073277663627454072772540578929751080541148517165946145740677229216346100104032899552330932201287138177277604899<140>

Index range: 997 – 997 << prev next >>