Which pairs of countries border exactly the same other countries?

[cartesiandaemon]

Neutrondecay asks which pairs of countries border exactly the same other countries? When the set is non-empty? When the set is more than one other country? If you allow pairs that also border each other?

ProcessAfter thinking about it a bit and not getting anywhere, I took Read more... )

Comments

[drswirly]

Not really better, but perhaps another one for the earlier list? Nepal and Bhutan border only India and China, it seems. (They don't border each other, which your heading seems to want - but UAE and Yemen don't either.)

[cartesiandaemon]

Oops, thank you. Someone else pointed out UAE and Yemen and I put it in the wrong section.

Nepal and Bhutan is the only example I did already have for that section?

[drswirly]

Gosh, was that "non-trivial examples" section really there earlier? I didn't see it at all! Snoozy me.