quiz

[y.kohmoto]

    Dear Neil
    Is it a good explanation for seqfans?
    We may ask the same question for Fibonacci sequence.
    ....5, -3, 2, -1, 1, 0, 1, 2, 3, 5, 8, ..... 
    Where is the starting point?
    
    Yasutoshi
   
>Dear Yasutoshi,


>The trouble is that I can only give a small numbers of terms 
of any sequence.

>Therefore it is necessary to have a starting point.
--------------------------------------------------

>For the Fibonacci numbers

  0 1 1 2 3 5 8 13 21 ...

>there is an obvious place to begin.


>For your sequence:

>>    "an example of periodic 1/4-sigma sequence : the period = 25
6943520030720  5386209454080  6389772480000  7665533854902  5756592291840
5657834203560  6382469882880  7938550287360  9055131471360   9256155068160
11798498589696  12316979136000  13937317954560  18314063179776
18071888486400  20136798781440  18850467643392  16492422758400
15699547839573  6635615891520  7400619883008  6494644316160  8009835724800
9317732578770  7847237806128"

>where does it begin?


>With best wishes

>Neil Sloane