[seqfan] Re: A simple terminological question

Klaus Brockhaus klaus-brockhaus at t-online.de
Sun Dec 5 09:10:57 CET 2010

  I am glad to read Neil's reply. It agrees with what I've been hoping for.

Of course I also agree to the off-list reply

"I'd say they are not consecutive in the sequence ...,-2,-1,0,1,2,...
but they are in the sequence ...,2,1,0,-1,-2,..."

I think that without further qualification "x and y are consecutive 
numbers" refers to A000027 (positive integers) or A001477 (nonnegative 
integers), otherwise "x and y are consecutive numbers in A......" or "x 
and y are consecutive numbers in the sequence ...c1,c2,...ck,..." should 
be said.

Thanks for the answers!


Am 05.12.2010 05:39, schrieb N. J. A. Sloane:
>> Are x and y consecutive numbers for x=7, y=6?
> I think not. But they are adjacent.
> Neil

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