# [seqfan] Re: difference of Fibonacci's

Neil Sloane njasloane at gmail.com
Fri Aug 11 19:13:44 CEST 2017

Don's Fib differences sequence is now A290748

Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Email: njasloane at gmail.com

On Thu, Aug 10, 2017 at 8:09 AM, Neil Sloane <njasloane at gmail.com> wrote:
> If Don's sequence is really missing from the OEIS,
> I hope someone will add it!
> Best regards
> Neil
>
> Neil J. A. Sloane, President, OEIS Foundation.
> 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
> Email: njasloane at gmail.com
>
>
>
> On Thu, Aug 10, 2017 at 5:06 AM, Don Reble <djr at nk.ca> wrote:
>> Seqfans:
>>
>>    While pondering a math-fun puzzle from James Propp, I also
>>    considered:
>>
>> %S A......
>> 1,2,3,4,5,6,7,8,9,10,11,12,13,14,16,18,19,20,21,22,23,24,26,29,32,33,
>> %T A......
>> 34,35,37,42,47,50,52,53,54,55,56,57,58,60,63,68,76,84,87,88,89,90,92,
>> %U A......
>> 97,110,123,131,136,139,141,142,143,144,145,146,147,149,152,157,165
>>           Positive numbers that are a difference of two Fibonacci numbers.
>>           9 is here because fib(6) - fib(-2) = 8 - (-1) = 9.
>>
>>    Is it missing from the OEIS, or did I just miscalculate?
>>
>>
>>
>>    My math puzzle: prove that the two-way additive sequence
>>    ... -6 10 4 14 18 32 ...  has no Fibonacci numbers.
>>
>> --
>> Don Reble  djr at nk.ca
>>
>>
>> --
>> Seqfan Mailing list - http://list.seqfan.eu/