Talk:Sociable number

November 2003
I am reinstating the example, as a mathematical calculation is not subject to copyright. Okay, I was imprecise with the attribution for the example, giving the impression that it was taken from copyright source. This is the situation as far as I see it:


 * The knowledge that 1264460, 1547860, 1727636, 1305184 are sociable goes back to a H. Cohen, On amicable and sociable numbers, Math. Comp. 24 (1970), pp. 423-429.
 * I used Mathworld as a secondary source for this fact, as it was convenient.
 * It is a mathematical result. Not copyrightable in itself.  (Copyright can apply to expressions of an idea - patents can apply to an algorithm)
 * The working I presented was mine, based on this mathematical result. Mathworld (whose copyright I believe I am respecting) does not present this working.
 * There are plenty of other sources for this result. For example, http://xraysgi.ims.uconn.edu:8080/amicable.html has a list of known sociable numbers http://xraysgi.ims.uconn.edu:8080/sociable.txt

As always, I am prepared to be proven wrong - IANAL (but IAAM). Cheers, AndrewKepert 05:55, 14 Nov 2003 (UTC)