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Two Plus Two Newer Archives (http://archives1.twoplustwo.com/index.php)

- Science, Math, and Philosophy (http://archives1.twoplustwo.com/forumdisplay.php?f=49)

- - Maths problem (http://archives1.twoplustwo.com/showthread.php?t=554957)

jay_shark

11-29-2007 08:49 PM

Re: Maths problem

One important detail I left out .

We move in the direction up-right or down-right .

TWCReborn

11-30-2007 11:27 PM

Re: Maths problem

To the original poster: Was this a homework problem in a combinatorics class? Just curious.

thylacine

12-01-2007 12:57 AM

Re: Maths problem

[ QUOTE ]
To the original poster: Was this a homework problem in a combinatorics class? Just curious.

[/ QUOTE ]

I made it up, but I'm sure this exact problem has been `made up' many times before. As above posters noted, it's closely related to generating function stuff for Catalan numbers.

thylacine

12-01-2007 01:22 AM

Re: Maths problem

[ QUOTE ]
[ QUOTE ]
you may find the discussion here interesting

http://www.artofproblemsolving.com/F...00&t=40150

[/ QUOTE ]

link didn't work

[/ QUOTE ]

Nevermind, I tried it again and it worked this time (my crappy connection). Obviously this is an old maths problem as I suspected.

Hey blah_blah, I don't suppose that you are blahblahblah on that site you link?

blah_blah

12-01-2007 02:47 AM

Re: Maths problem

[ QUOTE ]
Hey blah_blah, I don't suppose that you are blahblahblah on that site you link?

[/ QUOTE ]

one and the same

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