[seqfan] Re: Condom sequence
jvospost3 at gmail.com
Fri Sep 4 00:04:43 CEST 2009
Weisstein, Eric W. "Glove Problem." From MathWorld--A Wolfram Web
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On Thu, Sep 3, 2009 at 2:57 PM, Tanya
Khovanova<mathoflove-seqfan at yahoo.com> wrote:
> Hello all,
> I just wrote a piece that might contain a new sequence:
> The sequence is related to the generalization of the following math problem:
> Suppose three gay men all want to have sex with each other and every pair among them wants to do two penetrative sexual acts, switching roles. They want to avoid contaminating each other, and in addition, each man also does not want to cross-contaminate himself from either region to the other. How can they do that using exactly three condoms?
> a(2) = 2,
> a(3) = 3,
> a(4) = 4.
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