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Lucas Digits Look (Posted on 2016-11-07) Difficulty: 3 of 5
L(N) denotes the Nth Lucas Number.

Find the first three digits of L(2016)

No Solution Yet Submitted by K Sengupta    
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Some Thoughts re(2): solution+ | Comment 6 of 10 |
(In reply to re: solution+ by Charlie)

I    must     take  your word for it.

The offset (i.e. most of the  fractional part of the number missing to make it integer)  clearly results from ignoring the e^(-N )   in  cosh(N*Phi)  exact  formula; see the vast number of nines, making  it " almost " an integer..


  Posted by Ady TZIDON on 2016-11-07 12:24:21
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